The invention discloses a virtuality-reality head-mounted display equipment distortion parameter measuring method. According to the method, a screen is made to output a formwork drawing having a coordinate system, and a virtual image is captured by employing a camera instead of eyes; an image shot by the camera is processed through image processing software so as to correct self distortion of the camera, and a corresponding coordinate is extracted; through sampling a coordinate position of an original formwork drawing and a distorted coordinate position after lens imaging, a distortion parameter of certain single-color light is figured out; the screen is made to sequentially output coordinate formwork drawings of R, G and B three colors, the previous steps are repeated, and each distortion parameter of R, G and B is acquired. Through the method, on the basis of an actual imaging state of VR head-mounted display equipment, the virtual image is captured by employing the camera instead of the eyes, repeated debugging of the parameter can be avoided, moreover, developers are not required to have basic knowledge of optical design, so reliability or operation difficulty is better than a method determining the distortion parameter through theoretical simulation.