1. Management Concept and Principles Basic principles of quality control: First, adhere to the principles of quality, humanity and prevention, and adhere to the principles of quality standards, science, objectivity and impartiality. Before the construction of each project, the first project will be carried out according to the established construction plan. At the same time, each construction team implements the first project system. During the implementation process, the technician is organized to observe the entire process, followed by a summary meeting and a summary report. It plays the role of "advanced control, creation of the first control, typical demonstration, comprehensive drive". 2. Quality Goals 1. Eliminate serious quality accidents caused by construction quality, eliminate hidden risks of project quality, and strive to overcome common quality problems. 2. Zero quality defects in the main project. 3. Pass rate of sub-project is over 98%, pass rate of rework is 100%, pass rate of branch project and unit project is 100%. 4. Completion documents are true, complete, and effective, collected in a timely manner, compiled and standardized, and passed the passing inspection.