Abstract: The paper analyzes the four factors of climate,topography,vegetation and forest fuel which have close correlation to forest fire safety in Badaling Forest Centre of Beijing.The potential climatic factors of forest fire dangers are high temperature,low humidity,frequent and strong winds and long plant withering period.The topographical factors for forest fire control are steep slope,rapid slope and necks.The coniferous and broadleaf trees have more flammability,shrubs and renascent herbs in forest are dense,the area of sapling forest and young forest is large in proportion and inflammable fuels accumulated in the forest and the continuous vertical and horizontal distribution of vegetation are also the hidden dangers of forest fire.

Key words: forest fire, latency danger, forest fuel, Badaling in Beijig