This paper studies the large hydro power plant optimal bidding strategy in power market in both "approximately full competition" and "monopolizing" market situations,which is the dynamic programming problem with coefficient.

In order to explore the thinking of scientific development of basin hydropower under the requirements of building harmonic society,specific practice and experiences for hydropower developing of main stream of Dadu River were summarized,its effect was contrasted and the relationship between macroscopic environment and estate development was analyzed.

As Chinese electricity industry restructuring reform goes forwards, regional electricity distribution utilities will separate from the segments of transmission and distribution, they will operate monopolistically regional distribution network and bid freely in electricity wholesale market.