As one of the main pillar industries in our country’s national economy，construction industry has been at a relatively high speed of development. However，a large amount of construction waste has become one of the most important issues that scholars at home and abroad have paid close attention to in recent years. Based on the theory and method of system dynamics，this paper constructs a dynamic model of Beijing’s construction waste system including three subsystems of urban construction waste system，demolition waste system and refurbishment waste system，and then builds the stock of Beijing’s construction waste system figure，2010-2050 production forecast of construction waste in Beijing. Finally，through the simulation of the current situation，construction waste charging policy，population relocation policy，demolition and reconstruction of old urban areas，and garbage disposal policies，the paper discussed the policy of reducing emission and reducing the amount of waste.