Large-scale scientific instruments are important resources for cutting-edge research, high-level talent training and social services, so it is important to improve the efficiency of large-scale scientific instruments. Based on the practice of the large-scale instrument public technology platform of Shandong University, this paper summarizes the current problems in performance management, and hopes to realize the initial construction of the assessment and evaluation system and promote the construction of the large-scale instrument public technology platform through the exploration and thinking of the platform assessment and evaluation system, thereby furtherly improving the efficiency of large-scale scientific instrument resources.