Foundation pit supporting beam side protective barrier

The utility model relates to a foundation pit supporting beam side protective handrail, and relates to the field of building edge protection, the foundation pit supporting beam side protective handrail comprises two sets of guardrail bodies, connecting pieces arranged on the lower sides of the guardrail bodies and connecting sleeves pre-buried in a supporting beam, and the two sets of guardrail bodies are located on the two sides of the supporting beam correspondingly; the two sets of connecting sleeves correspond to the guardrail body and are located on the two sides of the supporting beam respectively, the multiple connecting pieces are fixed to the lower side of the guardrail body in the length direction of the guardrail body, the connecting sleeves correspond to the connecting pieces in a one-to-one mode, and the connecting pieces are detachably fixed to the connecting sleeves. The connecting sleeves are pre-buried in the supporting beams, and then the guardrail body is detachably fixed to the connecting