Ground fracture measuring system for coal mining subsidence area

The invention relates to the technical field of distance measurement, and particularly discloses a ground fissure measurement system for a coal mining subsidence area, which comprises a storage type middle pipe, connecting side pipes, a depth horizontal adjustment detection mechanism, an elastic storage roller and a horizontal side rod, and is characterized in that the two connecting side pipes and one storage type middle pipe form a fissure edge distance detection module; the elastic storage roller and the horizontal side rod form an edge horizontal spacing and vertical fall comprehensive detection module, and a depth horizontal adjustment detection mechanism is installed on the side face of the middle side outer sleeve of the low-point passive execution unit; the ground fracture specification parameter rapid measurement device solves the problem of rapid measurement of ground fracture specification parameters under wide ground fractures, ingeniously utilizes cooperation of the linkage measurement rope and t