Dark environment light shading photographing investigation auxiliary device

The invention relates to a dark environment light shading photographing investigation auxiliary device, which comprises an open frame, wherein four supporting rods are connected to the four corners ofthe open frame respectively, the other ends of the supporting rods are connected with fixing rods through movable hinges, L-shaped fixing strips are arranged at the joints of the four corners of theopen frame, the outer side of the open frame is provided with a light shading cloth, the lower portion of the light shading cloth is connected with a fixing cloth, the side face of the light shading cloth and the side face of the fixing cloth are both provided with primary-secondary bonding stickers, the open frame 1 is square or circular, the light shading cloth and the fixing cloth are both madeof opaque materials, through holes are formed in the two ends of the L-shaped fixing strips so as to make frame connecting rods penetrate conveniently, and the fixing rods are movably connected to the movable hinges so as to b