Switch detection device and robot

The embodiment of the utility model discloses a switch detection device and a robot. The switch detection device comprises a signal emission unit and a signal detection unit. The signal emission unit, the to-be-detected switch and the signal detection unit are sequentially connected to form a target closed loop. The signal transmitting unit transmits pulse level to the switch to be tested; the signal detection unit receives the pulse level returned by the to-be-detected switch, and determines that the target closed loop where the to-be-detected switch is located has a fault when the pulse level has an abnormal state. According to the invention, the related to-be-detected switch sends the pulse level with the specific rule, and detects whether the pulse level returned by the to-be-detected switch is abnormal or not, so as to determine whether the loop where the to-be-detected switch is located has the fault or not, and solve the technical problem that the fault of the loop where the switch is located cannot be