Building balcony guardrail structure

The utility model discloses a house building balcony guardrail structure, relates to a balcony guardrail, reduces potential safety hazards when workers clean glass plates on the outer side, and comprises a handrail, stand columns vertically arranged on the two sides of the handrail and glass plates arranged between every two adjacent stand columns. The glass plate comprises glass and a frame which is arranged on the edge of the glass and is of a rectangular structure, the frame comprises a pair of parallel transverse frame strips and a pair of parallel vertical frame strips, supporting rods are fixedly connected between the bottoms of the adjacent stand columns, and grooves allowing the transverse frame strips to be clamped in are formed in the sides, facing the handrail, of the supporting rods; a pull rod is fixedly connected to the middle of one transverse frame strip, a through hole for the pull rod to be rotationally connected is formed in the stand column, and the pull rod can slide up and down in the ax