The invention discloses a wide-color-gamut 3D display glasses and an imaging system. The system comprises multi-color display equipment and a 3D display glasses. The 3D display glasses comprises a left spectacle lens and a right spectacle lens, and the left and right spectacle lenses respectively comprise a high-pass filter, a low-pass filter and overlapping piece, wherein the high-pass filters, the low-pass filters and the overlapping pieces are sequentially overlapped. Each overlapping piece comprises N phase delay pieces and (N+1) polarizing films, wherein N is a natural number. The delay pieces and the polarizing films are overlapped, and first polarizing films between the overlapping pieces are directly overlapped with the low-pass filters. The 3D display glasses also comprises a drive circuit which supplies a drive voltage to the high-pass filters, the low-pass filters, the polarizing films and the phase delay pieces. The system can respectively display the left-eye and right-eye frames at the same time, and achieves the function of 3D display. Compared with the Film Patterned Retarder technology in the prior art, the system does not change the frame frequency, greatly improves the spatial resolution, and can achieve the two-eye simultaneous imaging. Display equipment does not need to quickly display the left-eye and right-eye frames alternately, thereby soling problems of high frame frequency and flickering in the Active Shutter Glasses technology.