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What is "Four Databases and One Platform"? What are its functions? Four Databases and One Platform are the most comprehensive popular science!

Author: Ai Xiaomo Date: 2025-11-26

Four libraries and one platform
Four libraries and one platform-2.4.4

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Software introduction: Sikuyi Platform is a construction information resource integration platform developed to help the Chinese construction industry. The purpose is to integrate the national construction industry...

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Q: What is the Sikuyi platform? What are the functions? The most comprehensive knowledge necessary for the construction industry
A:“Four databases and one platform” is not a simple information query tool, but an “infrastructure” that reconstructs the order of the construction market. For government departments, it is a "clairvoyance" for precise supervision; for enterprises, it is a "navigator" for compliance operations; for practitioners, it is a "protective umbrella" for professional rights and interests. As the digitalization of the construction industry deepens, the "four databases and one platform" will continue to be upgraded (such as access to AI supervision, big data analysis), and the future development of the industry will be more dependent on the compliance and authenticity of platform data.

In the process of digitalization of supervision in the construction industry, “four libraries and one platform” are core infrastructure that cannot be avoided. As a national construction market supervision public service platform led by the Ministry of Housing and Urban-Rural Development, it not only reconstructs the supervision logic of the construction market, but also directly affects key aspects such as enterprise qualification processing, personnel practice, and project implementation. This article will give you a comprehensive understanding of "Four Databases and One Platform" from the four dimensions of definition, core composition, functional value, and industry impact. It will also cover the core keywords of SEO and help relevant practitioners quickly obtain key information.

1. What is Sikuyi Platform? Definition and construction background

"Four Databases and One Platform", the full name of the National Construction Market Supervision Public Service Platform, is a national-level construction industry information sharing and supervision service platform led by the Ministry of Housing and Urban-Rural Development of the People's Republic of China (hereinafter referred to as the "Ministry of Housing and Urban-Rural Development"), which integrates construction market supervision resources from various regions and builds it. Its core is to realize the supervision and service functions of "one platform" (unified service platform) through the information linkage of "four databases" (four major databases). Its essence is to solve the problem of "information islands" in the construction market and promote the transformation of supervision from "offline approval" to "online dynamic verification".

Construction background: Why build four libraries and one platform?

Regulate market chaos: Previously, the construction industry had problems such as "certification" (personnel qualification certificate affiliation), "bidding rigging", and opaque project information, which made it difficult for traditional supervision methods to fully cover;

Improving regulatory efficiency: regulatory data in various regions are not interoperable, and the cost of qualification verification and credit assessment is high when companies operate across regions. The platform breaks down regional barriers through a national unified database;

Service industry development: Provide a unified information query portal for enterprises, practitioners, and government departments to reduce information asymmetry and promote the digital upgrade of the construction industry.

2. The core components of Siku and One Platform: What is “Siku”?

The “four databases” are the data foundation of the platform. The four major databases are interrelated and interoperable, and together constitute the “data base” for construction market supervision. Any information changes in one database will simultaneously affect other related modules to ensure data authenticity and consistency.

1. Enterprise database: basic information, qualification certificates, business scope, performance records, credit evaluation, etc. of construction enterprises (construction, design, supervision, survey, etc.). Dynamically monitor the qualification compliance of enterprises to prevent "qualification affiliation" and "super-qualification undertaking projects"; when enterprises operate across regions, the government can quickly verify the authenticity of qualifications

2. Personnel database: Qualification certificates, registration information, practice records, social security payment status, credit records, etc. of practitioners in the construction industry (registered constructors, registered architects, cost engineers, supervision engineers, etc.). Related personnel social security and practice units, crack down on "certification" from the root cause (inconsistency between social security and registered units will trigger an early warning); record the personnel's professional performance as the basis for professional title evaluation and qualification renewal

3. Project database: information on construction projects reported in accordance with the law across the country, including project approval, planning permission, construction permission, completion acceptance, project leader and team information, project progress, etc. Realize the "whole process traceability" of the project, and regulatory authorities can check the project compliance in real time (such as whether the construction is without a license, whether the project personnel are consistent with the registration information); put an end to "false project performance" (performance must be retrieved from the project library when companies apply for qualifications)

4. Credit database: Good behavior records of enterprises and employees (such as awards and evaluations), bad behavior records (such as illegal construction, falsification of qualifications, arrears of project payments), credit scores, etc. Establish a "trustworthy incentive and dishonest punishment" mechanism. Enterprises with poor credit may be restricted from bidding and have their qualifications cancelled; when enterprises bid and government procurement, credit records have become an important evaluation indicator

3. Core functions of four databases and one platform: dual value of supervision and service

"One platform" is the application carrier of the "four databases" data. By integrating the resources of the four major databases, it provides differentiated functions to government departments, enterprises, practitioners, and the public to achieve "more accurate supervision and more convenient services."

1. Government supervision function: from “passive approval” to “active early warning”

This is one of the core values of the platform, helping regulatory authorities achieve “penetrating supervision”:

Dynamic qualification verification: No longer relying on the company to submit materials regularly, the system automatically compares the "Enterprise Database - Personnel Database - Project Database" data (such as whether the number of registered personnel required by the enterprise qualifications meets the standards, whether the project leader is consistent with the registration information), and an early warning is directly triggered if an abnormality is found;

Project compliance supervision: The entire process information of the project from construction permit to completion acceptance needs to be entered into the project database. If there are problems such as "construction before approval", "overdue construction", "project personnel do not match the registered unit", the system will automatically prompt the regulatory department;

Joint credit rewards and punishments: The credit database is interconnected with data from other departments (such as market supervision, taxation, and banks). Untrustworthy enterprises will not only be restricted from bidding by the housing and construction department, but may also affect credit, government procurement, etc., realizing "if you lose trust in one place, you will be restricted everywhere."

2. Enterprise service functions: reduce operating costs and improve compliance capabilities

Construction companies are the main users of the platform, and its functions cover the entire business process:

Qualification application and maintenance: When an enterprise applies for qualifications (such as first-level construction general contracting), there is no need to submit paper performance certificates. The system directly retrieves relevant project records from the "project library" to reduce material preparation costs; before the qualification expires, the system automatically reminds maintenance;

Information query: You can query the qualification scope and credit record of peer companies (to avoid cooperation with dishonest companies), and you can also query the registration information of employees (to prevent the recruitment of "certified" personnel);

Project filing and tracking: After an enterprise undertakes a project, it must complete the filing in the project database as required, track the project progress in real time, and ensure project compliance.

3. Practitioner service functions: protect professional rights and standardize professional behavior

For practitioners in the construction industry (such as registered construction engineers), the platform is the “credit file” of the individual practice:

Qualification query and registration: You can query the status of personal qualification certificates (such as whether it has expired) and registered unit information. When handling registration changes (such as transferring from company A to company B), the system automatically verifies social security information to ensure compliance;

Practice record inquiry: The project information in which an individual participates will be synchronized to the "personnel database" as an important basis for professional title promotion and qualification extension; if there are violations in the project, the individual will also be associated with the record, affecting subsequent practice;

Early warning of certificate risk: If the personal social security unit is inconsistent with the registered unit, the system will trigger an early warning to remind you to make corrections in time to avoid being included in the "list of dishonest persons".

4. Public service function: improve market transparency

The platform opens some query functions to the public to protect the public’s right to know:

Corporate credit inquiry: The public can inquire about the credit records of developers and construction companies (such as whether there are bad records of wage arrears to migrant workers and project quality issues) to assist in decision-making (such as choosing a developer with good credit when buying a house);

Project information query: You can query the compliance of surrounding construction projects (such as whether there is a construction permit) and supervise "illegal construction" behavior.

4. The impact of four libraries and one platform on the construction industry: you must know these changes

Since the “Four Databases and One Platform” was fully launched, the construction industry’s regulatory logic, business model, and practitioners’ practice methods have all undergone significant changes, which are mainly reflected in three aspects:

The phenomenon of "certification" has been basically eliminated: through the linkage of "personnel database - social security data", regulatory authorities can quickly identify "inconsistencies between social security and registered units". As of 2024, the cumulative number of "certification" personnel across the country has been cleared over 1 million, and the practice of construction industry personnel has become more standardized;

The cost of corporate compliance has increased, but it is more beneficial in the long term: companies need to invest more resources in maintaining qualifications (such as ensuring social security compliance of registered personnel and timely filing of projects), but it also eliminates a number of small businesses that "survive by affiliation", promoting industry concentration;

Project supervision is more accurate and project quality is improved: the entire project process information is transparent, and problems such as "cutting corners" and "unlicensed construction" are reduced. According to data from the Ministry of Housing and Urban-Rural Development, after the platform went online, the number of complaints about the quality of construction projects nationwide dropped by about 30%.

5. Frequently Asked Questions (FAQ): Frequent questions about Sikuyi Platform

Where is the official entrance to the Sikuyi platform? You can directly log in to the official website of the Ministry of Housing and Urban-Rural Development (http://www.mohurd.gov.cn/) and find the entrance to the "National Construction Market Supervision Public Service Platform" in the "Service" column, or directly search for "Four Databases and One Platform" to enter the official website.

If an enterprise finds that the information on the platform is incorrect, how can it be corrected? A written application must be submitted to the housing and construction authority in the place where the enterprise is registered, along with relevant supporting materials (such as original qualification certificates, project filing certificates). After approval by the authority, the information will be updated on the platform.

If an individual is mistakenly judged as a "certificate", how should he appeal? Complaint materials (such as social security payment certificates, labor contracts, employment certificates) can be submitted through the platform's "Personal Complaint Channel", which will be verified by the local housing and construction department. The warning will be lifted if the verification is correct.

Will the data from the Sikuyi platform have an impact on corporate bidding? meeting! At present, bidding projects in most areas require companies to provide qualification certificates, credit records, and project performance from the "Four Databases and One Platform". If the platform shows that the company has a bad credit record or does not meet the performance standards, it may be excluded from the bidding scope.

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