Abstract: Abstract:Forest biomass energy is important in Beijing suburb, especially in Miyun water protection areas.This article is to solve the material problems of forest biomass station in the north of Miyun Reservoir. Method of field survey, modeling accounting and estimating for investment were adopted and used the Xizhuangzi forest station as a case study. The result showed that the average resource collectiong semidiameter of this forest station is 5.6 kilometre and the average rational collectiong semidiameter is 6.4 kilometre. According to this conclusion, 3 biomass stations should be constructed in the north part of Miyun water protection areas.