The invention belongs to the technical field of hedge trimming, and provides a self-propelled hedge trimming sweeping machine. The self-propelled hedge trimming sweeping machine comprises a walking device, a trimming device and a collecting device. The walking device comprises a control device, a driving device and a protecting device. The trimming device comprises a moving device and a cutter disc. The moving device comprises a cutter disc adjusting shaft, a direction adjusting arm and an oil cylinder, wherein the cutter disc adjusting shaft is connected with the direction adjusting arm in a bolting mode, and the direction adjusting arm is movably connected with the oil cylinder. The cutter disc comprises a trimming motor, a trimming cutter and a fixing plate, wherein the trimming motor is electrically connected with the trimming cutter, the upper end of the fixing plate is fixedly connected with the cutter disc adjusting shaft, and the lower end of the fixing plate is fixedly connected with the trimming cutter. The collecting device comprises a sweeping disc, a rolling brush and a collecting box, wherein the sweeping disc and the rolling brush are electrically connected with a sweeping disc hydraulic motor and a rolling brush hydraulic motor respectively, the sweeping disc, the rolling brush and the collecting box are arranged in sequence, and the collecting box is fixedly connected with the driving device. In this way, the self-propelled hedge trimming sweeping machine can collect scattered branches and leaves and avoid obstacles at the same time, and thus the multi-functionalization of a hedge trimming machine is enhanced.