Safety protection device for construction cost

The utility model relates to the technical field of engineering cost, in particular to an engineering cost safety protection device which comprises a clamping assembly, a fixing column is welded to the top of the clamping assembly, an installation assembly is welded to one side of the fixing column, and a sliding rod assembly is installed on the inner wall of the installation assembly. A fixing pipe assembly is installed on the outer wall of the sliding rod assembly, and a fixing assembly is welded to the rear end of the fixing pipe assembly. The clamping assembly comprises a first U-shaped mounting frame. According to the improved safety protection device, the sliding rod assemblies on the two sides of the fixing pipe assembly can be drawn according to the length of the floor edge, the distance can be adjusted, when the safety protection device is installed, no unprotected gap exists in the floor edge, and meanwhile the safety protection device can be installed through the inclined face arranged at the rear