The invention discloses a clamping device for LED lamp shell electroplating. The clamping device comprises a fixing shaft and a fixing base. The middle position of the top of the fixing base is rotationally connected with the fixing shaft through a rotation shaft, rotation rods are arranged in the fixing shaft, and auxiliary wheels are arranged at the bottoms of the rotation rods. The outer sidesof the rotation rods are connected with connecting shafts in the fixing shaft through belts. The connecting shafts are located above the rotation rods. Fixing rods are arranged on one sides of the connecting shafts. In the clamping device, the fixing shaft and the fixing base are rotationally connected through the rotation shaft, and meanwhile the connecting shafts in the fixing shaft are in transmission connection with the rotation rods through the belts; the auxiliary wheels are arranged at the bottoms of the rotation rods, the connecting shafts can be driven to rotate through rotation of the rotation rods, then, an LED lamp shell clamped by one side of each fixing rod can be adjusted to rotate, the position of the LED lamp shell can be adjusted by rotating the fixing shaft, and therefore the LED lamp shell can be made to rotate in any direction, and flexibility of the clamping device is improved.