The analysis of patent layout environment is the basic analysis of the environment of all dimensions involved in patent layout, and it is the basis of the follow-up work. The first thing to do in patent layout is to comprehensively analyze the industrial environment, technical environment, policy environment and resource environment faced by the innovation subject or market subject through technical investigation, industrial investigation and market investigation, and to clarify the technical route distribution, technical evolution trend, industry development trend, competition and cooperation relationship, policies and resource constraints in the technical field where the innovation subject or market subject is located, and to clarify the situation faced by patent layout.