Optical lens measuring device and method

The invention provides an optical lens measuring device and method. The optical lens measuring device comprises a light source, a half-wave plate, a polarization beam splitter, a 1/4 wave plate, a first reflector, a second reflector, a first beam splitter, a rotating module, a transmittance and reflectivity detection module and a chirp detection module, by constructing a reflection measurement path and a transmission measurement path and arranging a detachably mounted light beam shielding module on the reflector, three measurements of transmissivity, reflectivity and chirp are realized, recalibration and debugging are not needed, a large amount of time is saved, and the detection efficiency is improved. Besides, the to-be-detected lens and the reflecting lens corresponding to the to-be-detected lens are rotated through the rotating module, so that different optical parameters can be measured according to different optical lenses and different angles, the detection diversity is increased, the detection complex