The invention discloses a mountain land rotary digging device fixing frame. The mountain land rotary digging device fixing frame comprises a base frame, wherein the base frame is arranged on the ground of a construction site, the base frame comprises two parallel horizontal poles, a deep feeding frame is connected with the upper sides of the two parallel horizontal poles, the two parallel horizontal poles are connected through a plurality of reinforcing rods, and a hoisting device is installed on the reinforcing rods. The mountain land rotary digging device fixing frame is low in weight, smallin size, convenient to convey on mountain land uneven in terrain, and good in stability, can be stably installed on the mountain land construction site, and improves efficiency and safety of mountainland rotary digging construction.