The utility model relates to a special safety appliance which guarantees life safety of underground workers in the process of manual hole-digging cast-in-place pile construction, in particular to a safety protective cover. The safety protective cover comprises a support frame and a protective cover plate arranged on the support frame. The protective cover plate comprises a first protective cover and a second protective cover, wherein the first protective cover is connected with the second protective cover through a movable connecting part, and the first protective cover or the second protective cover can be opened and closed through the movable connecting part. The safety protective cover is easy to manufacture, low in cost and capable of effectively avoiding personal injury caused by falling objects in the process of manual hole-digging pile construction, and therefore an expectant safety protective target is achieved.