The invention provides a circuit breaker test device. The device comprises a handle, a handle spring, a test button spring, a test button, a connecting conductor, a test resistor, a first test contactand a second test contact, wherein the handle spring is at least provided with a movable end, the movable end of the handle spring rotates along with the handle, the test button spring is electrically connected with a handle spring, the movable end of the handle spring abuts against a first test contact after the handle spring is switched on along with rotation of the handle, and the movable endof the handle spring is disconnected from the first test contact after switching off or tripping, so an electric leakage test loop is in a disconnected state. The device is advantaged in that the handle spring is electrically connected with the test button spring, the movable end of the handle spring moves along with the handle, and thereby contact and separation of the handle spring and the firsttest contact are achieved, the structure of a test loop is achieved under the condition that the same purpose can be achieved, the number of parts is reduced, and the cost is saved.