Abstract: The authors established the water resource economy optimal model in Chaoyang district, Beijing City. By considering four types of water sources, i.e. surface water, groundwater, tap water and reclaimed grey water; the four major water users, viz. domestic (water for urban, rural), industrial (water for electronic and communication manufacturing, general industrial use, petrochemical, production of electricity steam hot use), agricultural (plant industry, fishery, forestry, animal husbandry) and ecological environmental, as well as more than 10 small water users, the multi-objective water resource planning model was developed and solved by using simple linear optimization method. The optimal allocation of water resources for 2010 and 2020 were calculated and presented.

Key words: water resource, groundwater, management model, linear optimization