Planting supporting device capable of preventing melon vines from inclining

The invention discloses a planting supporting device for preventing melon vines from inclining, and relates to the technical field of melon planting, the planting supporting device comprises a supporting plate, a height adjusting mechanism is arranged in the supporting plate, the height adjusting mechanism comprises a first motor arranged in the supporting plate, and a first transmission rod is arranged at the output end of the first motor; a gear is fixedly connected to the side, away from the first motor, of the first transmission rod, a rack belt is connected to the exterior of the gear in a meshed mode, a movable pipeline plate is arranged outside the rack belt, supporting frames are symmetrically connected to the exterior of the movable pipeline plate, and limiting circular rings capable of supporting and fixing melon vines are fixedly installed outside the supporting frames; the height of the supporting frame can be automatically adjusted according to each growth cycle of melons, it is guaranteed that s