Objective: To construct a set of weighted trigger index system for dynamic adjustment of medical service price, so as to provide references and basis for price adjustment of complex medical service projects in Tangshan. Methods: The Delphi expert consultation method was used to demonstrate and determine the index system, and the difference comparison method and product method were used to determine the weight coefficient for each index. Results: The trigger index system of dynamic adjustment of medical service price including 4 first-level indicators, 10 second-level indicators and 29 third-level indicators, and the weight coefficient of each indicator was given. Conclusion: The trigger index system of dynamic adjustment of medical service price in Tangshan has high scientificity and reliability, which is helpful for Tangshan to establish a sensitive and moderate price dynamic adjustment mechanism. Considering the affordability of all parties in the price adjustment of medical services in Tangshan, it is conducive to strengthening the total price control and structural adjustment of medical services in Tangshan.