The invention discloses an embedded type automatic spring door closer. The embedded type automatic spring door closer comprises a first equipment shell and a second equipment shell, wherein the firstequipment shell is fixedly arranged on a wall body, the second equipment shell is fixedly arranged on the door, a first transmission cavity with a downward opening is formed in the first equipment shell, a first support is fixedly arranged on the top wall of the first transmission cavity, a first rotary shaft is installed in the first support in a rotatable mode, symmetric gears are fixedly arranged on the outer surface of the first rotating shaft, the inner top wall of the first transmission cavity is fixedly provided with symmetrical second supports, racks are arranged in the second supportsin a sliding fit mode, the racks are meshed with the gears, sponge blocks are fixedly arranged at the lower end of the racks, a first belt wheel is fixedly arranged at the right end of the first rotating shaft, a second rotating shaft is rotationally matched with the inner wall of the right side of the first transmission cavity in a rotating mode, a second belt wheel is fixedly arranged at the left end of the second rotating shaft, a belt is connected between the second belt wheel and the first belt wheel in a transmission fit mode, and a ratchet wheel is fixedly arranged on the outer surfaceof the second rotating shaft.