| China is at an important strategic stage of constructing a well-off society, which has triggered an increasing demand of energy. So hydropower development has seen an unprecedented opportunity and, at the same time, has to tackle relevant problems like reservoir resettlement, ecology, environment, etc.. This paper presents in-depth researches on the coordinative development mode and comprehensive evaluation of hydropower project using the analytical method of combining quantitative with qualitative analysis, theoretical with factual, and policy with case studies. The main researches and results are as follows:1) Based on the overall systematic studies on the present conditions of China energy resources, the supply structure and the future tendency of energy demands, the strategic position of hydropower development in the national economy and social development is outlined in the context. To accelerate hydropower development is not only one of the inevitable choices of both China's energy strategy and its sustainable economic, social, ecologic and environmental development.2) The reservoir resettlement is of vital importance to the success of hydropower projects, so the principle of"priority to people"should be adhered to and much importance should be attached to migration problems to achieve appropriate solutions. Long-term effective mechanism beneficial to resettlement should be established by strengthening the functions and competency of resettlement agencies, increasing resettlement investment and formulating resettlement plans, compensation systems and relevant policies and laws, and carrying out supervision in the whole execution process etc., so as to ensure that the reservoir migrants are"willing to move, to settle down, and able to get rich gradually".3) Hydropower development has both positive and negative effects on ecology and environment, but generally the positive overweighs the negative. Therefore, the protection and harness of the ecology and environment should be carried out simultaneously with project construction which can, in turn, promote protection through implementing relevant policies and measures to minimize the adverse effects of hydropower development on ecology and environment.4) The factual analysis of the benefits of the Three Gorges Project (TGP) resettlement investment to the economic and social development by employing the principal components analysis method and invest-output multiplicator method show that the construction of TGP has accelerated the re-establishment of economic structures and social functions of the reservoir area. However, as the economic effect of a hydropower project in accelerating the local economic and social development is limited, the issue of coordinative development between hydropower project and regional economy should be considered from a higher level.5) An interaction mode between hydropower development and local economy is presented. That is, during the process of hydropower development, the relationship between project construction and infrastructure construction, local industry development and resettlement, should be taken into account and planned accordingly. What's more, by taking hydropower development as the engine of the regional economic and social development, a general plan should be made according to the regional actual conditions so as to establish an industrial structure and geographical distribution that suit the characteristics of the river basin which can be carried out by steps with the government guidance and support and aid from different sectors of the community, to develop advantageous industries with unique characteristics, and promote sustainable development of regional economy and overall progress of the society by taking advantage of the relative superiority of hydropower resources. Only when the hydropower development is closely related to the promotion of regional economic development and the effective use of resources, can the economic efficiency be ensured to maximize social benefits.6) A multi-purpose comprehensive evaluation method for hydropower projects is presented, which has employed stochastic weight assignment method to determine the value of weight, and when combined with Monte-Carlo simulation, it can be used to analyze the effects of changes of weights on evaluation results to enhance the applicability of the method. A comprehensive evaluation has been made on the normal pool level alternatives of Wudongde Hydropower Station on the Jinsha River to verify the feasibility and effectiveness of the method and provide reference for decision-making.7) A river basin developing and management mode with Chinese characteristics has been put forward. In the aspect of management and administration effected by the government, relevant laws and policies for river basin management should be established, and the coordination and management functions of relevant agencies should be perfected to set up an efficient coordination and supervision mechanism of benefits. In the aspect of project development by entities, the mode of"taking a basin as a whole for cascade development of its hydropower in an integrated manner with generation revenues financing further hydropower construction"can be created according to the characteristics of the basin. For large river basins, the mode of multi-projects coordinative development may be explored.8) A mode of coordinating the development of hydropower, regional economy and community as well as the protection of ecology and environment is outlined. In view of the problems in the present China hydropower development, the scientific development concept should be observed in future hydropower development. What's more, win-win principles of both hydropower development and environmental protection, hydropower development and reservoir migrants benefit protection, hydropower development and promotion of local economy and community etc. should be adhered to, so that hydropower construction will be ecologic friendly and life-improving, promoting the harmonious development of human and nature as well as the sustainable development of economy and society.9) The hydropower development is not only an economic issue, but also a social one. The government should provide support both in mechanism and in policy. In view of the problems and impediments in the present management system and policy of hydropower development, many feasible suggestions have been put forward.
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