Ultrasonic vibration coupling laser drilling system

The invention belongs to the technical field of laser drilling, and discloses an ultrasonic vibration coupling laser drilling system which comprises a laser machining head and an ultrasonic vibration device. The laser processing head is used for generating focused high-power pulse laser and acting on a to-be-processed area of a workpiece; the ultrasonic vibration device comprises an ultrasonic vibration generation unit and a hollow elastic sealing cover; the ultrasonic vibration generation unit is used for generating ultrasonic vibration; the hollow elastic sealing cover is adsorbed on the surface of a workpiece, and a hollow area of the hollow elastic sealing cover is consistent with a to-be-processed area of the workpiece; during working, the focused high-power pulse laser penetrates through the hollow area of the hollow elastic sealing cover and directly acts on the to-be-machined area of a workpiece, the hollow elastic sealing cover transmits the ultrasonic vibration to the to-be-machined area of the work