The utility model discloses a circuit detection device. a movable plate is arranged between the left vertical plate and the right vertical plate; the to-be-detected electronic component is located between the left vertical plate and the movable plate. a spring is mounted between the right vertical plate and the movable plate; telescopic pipes are arranged outside the springs in a sleeving manner;a transverse rod is transversely and movably inserted into the middle of the right vertical plate, the left end of the transverse rod is bonded with the middle of the right side wall of the movable plate in a heat sealing mode, the power source is sequentially connected with the switch, the ampere meter, the positive metal sheet and the negative metal sheet in series through wires, and the positive metal sheet and the negative metal sheet are connected with the voltmeter in parallel through wires. According to the circuit detection device, the positive electrode and the negative electrode of the to-be-detected electronic component are in close contact with the positive electrode metal sheet and the negative electrode metal sheet, poor contact is prevented, operation is easy, the measurement precision is high, the to-be-detected electronic components with different lengths can be conveniently positioned, and the adjustment performance is good.