The invention discloses a direct insertion type cassava planting machine, and belongs to the technical field of agricultural machinery equipment. The direct insertion type cassava planting machine comprises a rack body, a fertilization mechanism, a direct insertion driving mechanism, a cassava seed cutting mechanism, a ridging mechanism and a seat; the rack body is in bolted connection with the ridging mechanism; the output end of the direct insertion driving mechanism is rotatably connected with a fixed shaft; the fixed shaft is in bolted connection with a gearbox; the cassava seed cutting mechanism is rotationally connected with a transmission shaft which is rotationally connected with the fertilization mechanism; and the seat is in bolted connection with the rack body. During operation, cassava is put in through a cassava input port, when the cassava enters the cassava seed cutting mechanism, under cooperation of a seed cutting gear and a rotating shaft, the cassava falls between an anti-falling fixed cylinder and cutters, and when the two cutters make contact with each other, the cassava is cut; slitted cassava falls into a cassava discharging barrel, a cassava direct insertion driving gear and a driving shaft drive the cassava to rotate in a clamping pipe, the cassava is directly inserted into the ground, the situation that new sprouts of the cassava can pierce out of the ground at the first time is guaranteed, and the sprouting efficiency is improved.