Mountain land tree planting robot

A walking mechanism of the mountain tree planting robot comprises first supporting leg pieces connected to the four end corners of a robot body and second supporting leg pieces connected to the front end and the rear end of the robot body, the four first supporting leg pieces and the second supporting leg piece alternately walk in the mode that the robot body can keep stable, and pit digging mechanisms used for digging tree pits are arranged on the first supporting leg pieces; the first supporting leg piece and the second supporting leg piece are connected to the machine body through sliding seats, adjusting mechanisms are connected between the sliding seats and the machine body, the positions of the sliding seats can be adjusted through the adjusting mechanisms, and the first supporting leg piece and the second supporting leg piece comprise upper legs and lower legs which are sequentially connected with the sliding seats. Adjusting mechanisms are arranged between the sliding seat and the upper leg and betwee