The invention discloses an ABS dynamic detector including a housing. The housing mainly therein includes a self-locking button switch unit, an ABS sensor detection circuit, an ABS electromagnetic valve detection circuit and a DC voltmeter. The upper end of the housing is provided with detection cable interfaces connected with an ABS controller connector and a power source through cables. Electricelements on a housing panel includes a DC voltmeter plate, a self-lock button switch unit, an electromagnetic valve detection button, an ABS working indication lamp and a detection terminal zone. Thedetection terminal zone includes a sensor detection terminal, an electromagnetic valve detection terminal, an ASR valve detection terminal, an ABS/ASR lamp detection terminal, a ground line detectionterminal, a continuously-powered key power detection terminal, a relay detection terminal. The ABS dynamic detector provided by the invention is simple in structure, small in size and convenient to carry. The ABS dynamic detector provided by the invention can perform system detection on a new automobile and can also be used for trouble shooting effectively and quickly for malfunctioning automobiles.