The invention discloses an integral laser induction acoustic surface wave defect detection device and belongs to the technical field of nondestructive detection. The device comprises a detection head,an optical fiber beam and a detector, wherein a pumping laser emitting hole is formed in the center of one side end surface of the detection head; detection layer holes are uniformly distributed in the peripheral direction of the pumping laser emitting hole; the pumping laser emitting hole of the detection head is connected with a laser source through a corresponding optical fiber in the opticalfiber beam; each detection laser hole of the detection head is connected with corresponding laser sources and corresponding detectors in the optical fiber beam respectively; pumping laser is emitted from the pumping laser emitting hole; detection layer is emitted from the detection layer hole; reflected detection layer is received and transmitted to a corresponding detector through the detection layer hole. The device is capable of acoustic surface waves from laser and performing surface defect detection on a detected object in a laser detection mode, and is high in defect defection efficiencyand further convenient to operate.