The invention provides an automatic plastic tube coiling machine, and belongs to the field of tube coiling equipment. The automatic plastic tube coiling machine consists of a motor, a small disc connector, an upper disc, a lower disc, a tube coiling device, a coupler device, a traction device, a tube clamping device and a supporting stand column combined device, wherein the motor is arranged on the bottom, and is connected with the tube coiling device through the coupler device; and the tube coiling mechanism can conveniently take down coiled plastic tubes by rotation of a rotating plate. Theautomatic plastic tube coiling machine can replace manual tube coiling, and manual tube coiling has the characteristics of large occupied labor, low efficiency, low accuracy, high labor intensity, high investment, high cost and the like. By the tube coiling machine, heavy labor of workers can be replaced, the production cost is reduced, the labor productivity is improved, and the economic benefitis increased.