This wheelchair movement assistance device comprises: a pair of mounting members which is mounted to the left and right front pipes or the left and right leg pipes of a wheelchair in a removable manner by being clamped or engaged therewith and a square C-shaped pipe frame, to both ends of which the pair of mounting members is mounted. The mounting members are provided with clamping sections formed at the ends of pipe frame, and with grasping sections attached to the ends of the pipe frame at positions in front of the clamping sections. Each of the grasping sections grips a portion of each of the front pipes of the wheelchair or a portion of each of the leg pipes of the wheelchair, and each of the clamping sections is in pressure contact with a portion of each of the front pipes or the leg pipes of the wheelchair.