Object: The article researches on efficiency of Shanghai Community Health Service (SCHS) and establishes production function of SCHS.Method: Establishing the production function of SCHS by Weighted Least Squares Estimation .Result: 1. Formulating the reasonable production function of SCHs based on Cobb: Douglas (C-D) function. 2. The article reveals SCHS production function with constant returns to scale.Conclusion: 1. Increasing human resource investment is a key factor for raising SCHS.2.Strenghten management and explore an efficient service model will improve SCHS level
