Interbody fusion cage capable of preventing backward movement of limiting pin

The utility model relates to the technical field of medical instruments, and discloses an interbody fusion cage capable of preventing backward movement of limiting pins, which comprises a fusion body, two groups of limiting pins are arranged on the right side in the fusion body, an operation channel is arranged on one side of the two groups of limiting pins, and the operation channel is arranged at the bottom of the right side of the fusion body. A mounting hole is formed in the center of the bottom of the fusion body, a fusion cavity is formed in the fusion body, and a fixing mechanism is arranged outside the limiting pin. According to the interbody fusion cage capable of preventing backward movement of the limiting pins, when fixing is needed, a hole groove is rotated, and the hole groove rotates to drive a rotating disc arranged outside to rotate, so that two sets of arc-shaped grooves rotate, sliding blocks embedded in the two sets of arc-shaped grooves slide in the arc-shaped grooves, and the two sets of