Abstract: The promulgation of 《Medium and Long Term Nuclear Power Industry Development Plan (2005—2020)》 by China State Council indicated the policy for nuclear power industry would change from "proper development" to "positive development". Except the coastal area, new nuclear power plants will also be constructed in inner land area. The plant location selection of nuclear power plant should be very scientifically, carefully and strictly, beside geology, meteorology, hydrology, hydraulic, nature environment and safety, the problems about adopting natural ventilation, mechanical draft cooling tower for water resource saving, ensuring safe water supplication and satisfying the discharge standard should be considered especially in inner land area.

Key words: nuclear power plant, hydraulic plan, circulation cooling water, safety plant water, water with low salt content