The invention relates to the technical field of soil repairing, and discloses a plow-harrow soil pulverization device for biological organic fertilizer soil repairing. The plow-harrow soil pulverization device includes a support frame and plow-harrow devices, a first connection block is fixedly connected to the right end of the support frame, a connection rod is fixedly connected to the middle ofthe upper surface of the support frame, a support rod is fixedly connected to the right end of the connection rod, a rib plate is fixedly connected to the lower end of the support rod, the lower end of the rib plate is fixedly connected to the support frame, and the plow-harrow devices are arranged at the right end of the lower surface of the support frame. According to the plow-harrow soil pulverization device for biological organic fertilizer soil repairing, by arranging support plates, a first bearing, a second bearing, a fixing frame, a motor, a first rotation rod, a soil pulverization rolling wheel, a first connection plate, a second connection plate, a second rotation shaft, a circular hole, soil pulverization blades and discharging pipes, the soil pulverization effect is good duringplowing; after plowing, the soil pulverization rolling wheel can incidentally pulverize soil, therefore, soil repairing uniformity can be improved, it is convenient for people to use the plow-harrowsoil pulverization device, and after plants are planted, the growth of the plants is promoted.