The invention relates to a moveable turnover type protecting device for a pile hole. The device comprises a square angle iron frame, wherein two connecting rods are respectively arranged in the square angle iron frame along two diagonal directions; one ends of the four connecting rods are fixedly connected with the angle iron frame while the other ends are connected with each other on the central part in the angle iron frame; a triangular supporting plate is respectively arranged between two adjacent connecting rods; one side of the supporting plate is fixedly connected with the angle iron frame; the other two sides of the supporting plate are fixedly connected with the connecting rods; a warning device is detachably arranged on the part for connecting the connecting rods with each other; the connecting rods comprise two back-to-back angle iron rods; and a clearance is formed between the two angle iron rods. The moveable turnover type protecting device for the pile hole is reasonable in structure design and low in manufacturing and maintaining cost; the pile hole can be effectively covered and protected, so that people can be prevented from carelessly falling into the pile hole so as to cause the falling accident; the device can be effectively prevented from being moved away, so that the safety in the construction process can be ensured; besides, the device can be conveniently moved, turned over and stored, and is suitable for pile holes in different sizes.