The invention discloses a fruit tree fallen fruit pickup and collection device, and relates to the technical field of agricultural mechanical equipment. The fruit tree fallen fruit pickup and collection device comprises a box body, a first motor is fixedly connected to the upper portion of the right side of the inner wall of the box body, a first belt pulley is rotatably connected to the front endof the first motor through an output shaft, a gear fixing plate is fixedly connected to the portion, located at the lower portion of the first motor, of the right side of the inner wall of the box body, a first gear is rotatably connected to the left side of the gear fixing plate through a rotary shaft, a second belt pulley is fixedly connected to the front portion of the first gear, and the first belt pulley is rotatably connected to the second belt pulley through a belt. The fruit tree fallen fruit pickup and collection device solves the problems that existing fruit harvesting still stays in the manual picking level, time and labor are wasted, the efficiency is low, and the fruits are broken is easily caused; the purpose of mechanical pickup of the fruits is achieved, the work efficiency is effectively improved, and staff's labor intensity is lowered; moreover, the fruit tree fallen fruit pickup and collection device is easy to operate and convenient to use, facilitates later maintenance and effectively lowers the picking cost.