The utility model discloses a round alarm device is taken off in colliery monkey car wire rope in pit belongs to mine subsidiary transport field, the technical problem that will solve provides a round alarm device is taken off in colliery monkey car wire rope in pit, utilizes travel switch come to detect card cord rack and wire rope's relative position, and when wire rope took place the dislocation with card cord rack, card cord rack made the travel switch closure start bee calling organ and reports to the police, reminds travel switch 0 person and personnel by bus, the emergence of reduction accident, the problem of this technique is solved the technical scheme who adopts does: a round alarm device is taken off in colliery monkey car wire rope in pit, crossbeam are located the top of mine, and the detection device dead lever sets up in the crossbeam below, and detection device sets up on the detection device dead lever, and the rope sheave dead lever sets up in detection device dead lever below, and the rope sheave articulates on the rope sheave dead lever, is equipped with the recess on the rope sheave, and wire rope is located the recess, and detection device's input and power are connected, and detection device's output and bee calling organ's input are connected, and bee calling organ is connected with the power.