Municipal engineering foundation pit safety protection device

The invention relates to a municipal engineering foundation pit safety protection device, and relates to the technical field of foundation pit construction. The municipal engineering foundation pit safety protection device comprises a plurality of precast piles, wherein the plurality of precast piles are arranged along the periphery of a foundation pit, the precast piles are respectively inserted into a soil body, vertical rods are respectively fixed to the precast piles, two parallel cross rods are connected between every two adjacent vertical rods, a plurality of grating plates which are arranged in the length direction of the cross rods are inserted between every two opposite cross rods, and the grating plates are fixed to the cross rods through limiting pieces. The municipal engineering foundation pit safety protection device has the effect of increasing the installation speed of a foundation pit protection system. 本申请涉及一种市政工程基坑安全防护装置，涉及基坑施工技术的领域，其包括若干沿基坑周边排列的预制桩，各个预制桩均插入土体内，各个预制桩上均固定有立杆，相邻两个立杆间均连接有两个相互平行