Abstract: The economic values and losses evaluation models on reservoir dam construction were constructed by direct market method (market value method), surrogate market method (such as opportunity cost method, shadow project method, shadow price method and prevention expenditure method) and simulation market method (contingent valuation method). Then the evaluation models of eco-compensation standard (ECS) were established. Finally the ECS of the Three Gorges Project (TGP) construction was evaluated. The results show that: 1) flood control, hydropower product and environmental benefits of hydropower were the main functions of TGP, which occupied 23.64%, 46.84% and 25.31% of the total economic values respectively. The reservoir sedimentation and reservoir inundation were the main negative effects of TGP, which occupied 62.78% and 13.17% of the total economic losses respectively. 2) The six positive effects'economic values of TGP in total was 452.00×10⁸ yuan/a. The sum of ten negative effects'economic losses of TGP was 87.62×10⁸ yuan/a. Six schemes of ECS were proposed on the premise of choosing and identifying eco-compensation subjects and objects, while considering the economic benefits of eco-compensation subjects. In the six schemes, the hydropower development owner and central-local government were the main eco-compensation subjects. The river ecosystem and resettlements were the main eco-compensation objects. The research suggests that the sixth scheme should be recommended currently with the ECS being 60.99×10⁸ yuan/a.