The utility model relates to the technical field of pumpkin planting, in particular to a multifunctional support for pumpkin planting, which comprises a bottom plate, a supporting column is arranged at the top end of the bottom plate, a movable cylinder is sleeved at the top end of the supporting column, a plurality of limiting grooves are arranged on the periphery inside the movable cylinder, and grooves are arranged on two sides of the top end of the supporting column. A limiting mechanism is arranged in the groove, a plurality of mounting blocks are fixedly arranged on the two sides of the movable cylinder, a plurality of mounting plates are arranged on the two sides of the supporting column, and a mounting groove is formed in one side of each mounting plate. The height of a movable cylinder can be adjusted through a limiting block, a limiting groove, a telescopic rod and a spring so as to adapt to the height needed by growth of pumpkin vines, the adaptability of the device is improved, the stability of a mounting plate on the movable cylinder is improved through a rotary knob, a movable column, a first gear, a second gear, a movable rod, a third gear, a fourth gear and a clamping block, and the practicability of the device is improved. And the broken mounting plate can be conveniently detached and replaced by a new mounting plate.