Floor-area ratio（FAR） is an important means to guide city construction,to control the direction of urban development and to shape the urban spatial structure.The logistics warehouse is quite special,while our country has not yet formed a unified and perfect control standard. In the preparation of control detailed planning,the FAR of logistics warehouse is often not scientific.By reviewing standards and rules issued by national and local,the main factors that affect the floor-area ratio of logistics warehouse are analyzed,and a method to determine the reasonable range of floor-arearatio for logistics warehouses is put forward.Based on theoretical calculation,suggestions for different types of logistics projects are given.