Edge protective railing fixing base

The utility model relates to a fixing base for an edge-adjacent protective rail. The fixing base for the edge-adjacent protective rail comprises a bottom plate, a fixing sleeve, a clamping piece and a fixing cover. The bottom plate is a circular plate, and four expansion bolt holes are formed in the bottom plate; the fixed sleeve is coaxially arranged on the rear side face of the bottom plate, a threaded sleeve is arranged in the radial direction of the fixed sleeve and penetrates through the sleeve wall at the corresponding position of the fixed sleeve, and external threads are arranged on the peripheral face of the threaded sleeve; the clamping piece comprises an upper clamping piece body and a lower clamping piece body, the upper clamping piece body comprises a first arc-shaped section and a vertical section, the lower clamping piece body comprises a second arc-shaped section and a connecting section, and a clamping space used for clamping the protective barrier is formed between the first arc-shaped secti