The invention discloses a plastic internal bubble detection equipment. The plastic internal bubble detection equipment comprises a first conveyor belt, a fixing rod, a guide plate, a detection chamber, an X ray detector, a stabilizing side plate, a turning device, a turnover panel, a small motor, a sleeve pipe, a counter, a stopper, a first collecting frame, a second conveyor belt, and a second collecting frame; the detection chamber is fixedly arranged at the middle part of the first convey belt; the X ray detector is arranged at the top of an internal cavity of the detection chamber; the side surface of the fist conveyor belt is fixedly connected with the guide plate through the fixing rod; the right side of the guide plate is fixedly connected with the stabilizing side plate; the secondconveyor belt is arranged at the right side of the first conveyor belt. The first conveyor belt and the second conveyor belt are designed to be cooperative with each other, unqualified products are discharged using the turning device, the process is simple, efficiency is high, production cost is reduced, arrangement of the collecting frames at the lower side is capable of saving labor force, andproduction efficiency is increased.