The invention belongs to a design of a light crimping machine for a continuously reinforced plastic compound pipe. The continuously reinforced plastic compound pipe is clamped during roundness calibration, then a piston rod of an oil cylinder moves to sleeve a crimping connector on the continuously reinforced plastic compound pipe, later a puller clamping cylinder is released, an internal-expansion supporting sleeve having a notch is arranged, the piston rod of the oil cylinder draws back to allow an internal-expansion head to come out of the crimping connector and the internal expansion is completed; and then the piston rod of the oil cylinder pushes the crimping connector to complete external crimping through an external crimping module. The light crimping machine is simple in structure, convenient in operation, compact and reasonable in overall structure and dimension, convenient in transportation, quick in crimping connector installation, suitable for rush repair operation in an excavation pip in a wild marshland or an paddy field, low in manufacturing cost, and high in economic and utilization value.