In the context of building a new-type power system with renewable energy as the main body, the grid connection performance evaluation index system and framework of renewable energy stations are put forward in order to accurately grasp the performance of renewable energy stations. Specifically, the calculation method of index including key electrical parameters, as well as the implementation method and platform are also given. Based on the analysis of simulation data and field tests, the grid connection performance evaluation index system of renewable energy stations constructed in this paper has certain advantages in data information accuracy and computational efficiency, which can provide a solution for the power grid to strengthen the perception and regulation ability of the grid connection characteristics for renewable energy stations.