The invention discloses a detection device for batch detection of biological genes, which comprises a detection table, a support frame is fixedly connected to the bottom of the detection table, a mounting plate is symmetrically fixed on the top of the detection table, a mounting frame is detachably connected to the top of the detection table, and a mounting frame is installed at the bottom of the mounting frame. There is a detection head; a movable rod is arranged symmetrically on the top of the detection table, and a conveying rod is arranged on the top of the detecting table, and the conveying rod is located between two symmetrically arranged movable rods. There is a conveying groove on the top of the conveying rod, and symmetrically Clamping groove, and the clamping groove is connected with the conveying groove, one side of the movable rod is equidistantly fixed with a limit rod, and the limit rod is matched with the clamping groove, the present invention uses a push rod motor, a push plate, a fixed rod and a limit rod With the mutual cooperation of the rods, the gene detection sheet can be transported with a specified length, which is convenient for the detection head to detect the gene detection sheet, saving time and improving work efficiency.