The utility model discloses a supporting frame for hoisting mechanical equipment on a construction site. The bucket comprises a bucket body, a base, a hanging rod and a sleeve, the bucket body is arranged on the base, the lower end of the sleeve is fixed to the base, a side arm of the sleeve is fixed to the side wall of the bucket body, the hanging rod is an inverted-L-shaped rod comprising a vertical section and a bent section, the lower portion of the vertical section of the hanging rod is inserted into the sleeve to be fixed, and a hanging ring is connected to the bent section. When the supporting frame is used, the base can be horizontally placed beside a pile foundation pit, and then the bucket is filled with water to increase the weight of the bucket. The hanging rod is fixed in thesleeve, the hanging ring is located at the top of the pile foundation pit, a rope can penetrate through the hanging ring to hang equipment in the pile foundation pit, and due to the fact that the weight of water is large, the equipment can be more stable. And when the suspender is not stressed, the valve can be opened, and water is drained from the drain pipe to be used on a construction site. Thesupporting frame is very convenient to disassemble and assemble and has a water storage function, stability is improved through water storage, and water can be supplied to a construction site at anytime.