Lightproof operation box for biological experiment

The utility model discloses a light-proof operation box for a biological experiment. The light-proof operation box comprises a box body, operation structures are arranged at the two ends of the box body, a box body handle is arranged at the top of the box body, an objective table is arranged in the box body, a storage rack is installed above the objective table, a water outlet hole is formed in the bottom of the box body, and an observation window is formed in the box body; the operation structure comprises an upper door body connected with the upper end of the box body through a hinge, a left door body and a right door body, the left door body and the right door body are connected with the two sides of the box body through hinges, and handles are arranged on the upper door body, the left door body and the right door body. The operation box solves the problems that an existing light shielding box cannot perform experiment operation in the operation box, overflow liquid of experiment objects is prone to remain