The invention discloses a leg-
foot type intelligent star surface detection 
robot sensing system and a working method thereof. The leg-
foot type intelligent star surface detection 
robot sensing systemcomprises a three-dimensional 
laser sensor, a left-eye visible light camera, a right-eye visible light camera, a 
structured light measurement camera, an 
inertia measurement unit and an industrial 
personal computer. The working method comprises the following steps of: 1) integrating the three-dimensional 
laser sensor, the 
structured light measurement camera and the 
inertia measurement unit to realize the functions of three-dimensional reconstruction of 
complex topography and 
landform of a star surface, multi-level semantic 
topological map construction, 
robot positioning, real-time detection ofstatic / dynamic obstacles, path optimization based on 
robot motion constraint, trajectory tracking and the like; and 2) and centralizing the 
binocular vision cameras for carrying out high-precision three-dimensional 
pose measurement on a to-be-collected sample. The leg-
foot type intelligent star surface detection robot 
sensing system not only can assist the foot-type robot to autonomously adapt todifferent 
terrain environments such as soft and hard 
terrain environments, realize long-distance, intelligent 
obstacle avoidance and autonomous 
roaming and safely arrive at a pre-specified target detection position, but further can assist a mechanical arm 
tail end tool to perform refined operation on a collected sample.