In order to solve the technical problems of low automation level and difficulty in efficient collaboration in support,mesh laying,drilling and anchoring processes during coal mine tunnel excavation,based on TRIZ theory,a structural innovation design of a full section anchor laying support robot was carried out.By using the nine screen analysis method,functional model diagram,and causal axis analysis,the root cause of the insufficient efficiency of the existing anchor laying support robot was identified.A new type of full section anchor laying support robot structure was designed using methods such as technical contradiction method,physical contradiction method,and 76 standard solutions.Through ADAMS-AMESim co-simulation,the mechanical hydraulic coupling analysis of its key step self moving bracket was carried out.The results show that the full section anchor laying support robot has parallel operations such as walking,laying nets,supporting,anchoring and drilling; the maximum pushing force of the pushing cylinder and the maximum pulling force of the walking self moving bracket during operation are 10 940 N and 18 510 N,respectively.The error between the actual displacement and the ideal displacement meets the design requirements.