The invention discloses a hole pile excavation safety protection device. Four supporting columns A (6) are fixedly mounted on the upper portion of a base (5). A top seat (9) is fixedly mounted on theupper portions of the four supporting columns A (6) and is fixedly connected with the lower portion of a framework (10). Protection nets A (2) are mounted on the two side faces of the framework (10),and a protection net C (13) is mounted on the rear portion of the framework (10). The lower portion of the rear end of the framework (10) is hinged to the rear end of a protection cover (1). The protection cover (1) covers a buffer (14) in a manner of inclining a front end cover, wherein the buffer (14) is mounted on the upper portion of the front end of the framework (10). The lower ends of two splayed steel wire ropes (11) penetrate through the four corners of the framework (10) to be clamped by steel wire clamps and then are placed in the four supporting columns A (6). The upper ends of thetwo splayed steel wire ropes (11) are connected with lifting rings (12). According to the hole pile excavation safety protection device, the situation that in the hole pile excavation process, hole walls collapse, hole opening objects and lifting objects fall off by accident, and construction personnel at hole bottoms are hurt can be avoided, and meanwhile the excavation size and the inclinationdegree in the hole pile excavation process are controlled.