Abstract:With the continuous expansion of the domestic construction industry, the operational effectiveness of the internal quality management system of testing institutions has gradually received attention from industry regulatory authorities. The scale of the domestic testing industry is constantly growing, and the quality management system has gradually been implemented in accordance with current regulations. However, there is still room for improvement in the daily execution of the system by institutions. The article combines the actual development situation of the engineering testing industry to analyze the current operation status of the quality system. It sorts out the existing problems from four dimensions: personnel configuration, personnel and equipment allocation, process control and supervision, operation of quality system documents, and digital transformation and smart laboratory construction, and proposes targeted optimization measures to provide practical reference for similar testing units to improve internal quality management and help the industry develop steadily and sustainably.