Safety protection system for civil engineering construction

The utility model discloses a civil engineering construction safety protection system, relates to the technical field of civil engineering construction, and aims to solve the problems that most existing safety protection systems are manually built on a construction site, time and labor are wasted, and assembly and disassembly are inconvenient. The construction safety protection mechanism comprises a middle stand column and auxiliary stand columns, the auxiliary stand columns are located on the two sides of the middle stand column, the middle stand column and the auxiliary stand columns are connected through a first driving arm, the two auxiliary stand columns are connected through a second driving arm, and the first driving arm and the second driving arm are connected through a damping rotating shaft. The upper end of the middle stand column and the upper end of the auxiliary stand column are each provided with a sliding groove, the first driving arm and the second driving arm are both in sliding connection w