Non-contact surface defect detection device and use method

The invention discloses a non-contact surface defect detection device and a use method, and relates to the field of surface defect detection. The non-contact surface defect detection device comprises a shell with an opening, a camera and a distance detector which are adjacently arranged are arranged on the opening of the shell, and a control panel, an acquisition switch, a power switch and a signal output end are further arranged on the shell; the camera, the distance detector, the acquisition switch, the power switch and the signal output end are electrically connected with the control panel; and the signal output end is in signal connection with the data processor. The detection device is compact in structure, the signal output end is directly in signal connection with the data processor, defect identification and data analysis are synchronously carried out, and the surface defects of components can be rapidly identified; and all the parts are connected in a special connection mode, so that the detection an