［Purposes ］ This paper aims to analyze the impact of green technical efficiency uncertainty on green supply chain decision -making under different supply chain power structures and to explore the mechanism of the game relationship between the manufacturer and the retailer on the green level and pricing strategy.［Methods］ Under the condition of technical efficiency uncertainty，game models between the manufacturer and the retailer were constructed under four supply chain power structures：manufacturer -leader -retailer （MLR），retailer -leader -manufacturer （RLM），manufacturer -onpar -retailer （MOR），and centralized （C） decision -making.The Stackelberg game and Nash game methods were respectively adopted to analyze the optimal decision solutions under each structure，and numerical simulations were conducted to compare the impacts of technical efficiency uncertainty on the green level and price under different structures.［Results］ An increase in the mean value of technical efficiency helps improve the green level，but pricing strategies vary under different power structures.The MOR power structure has more advantages in green investment and anti -risk capability.When volatility increases，the C power structure and MOR power structure exhibit stronger stability.［Conclusions ］ The uncertainty of green technical efficiency and the supply chain power structure jointly affect green supply chain decision -making.The research results can provide a reference for enterprises to select suitable cooperation structures and formulate green strategies and provide theoretical support for policymakers.