Abstract: An ice-storing tank for an air conditioner with an ice-storing tank includes a temperature-preserving tank and a spiral pipe set positioned in the tank. The spiral pipe set consists of a bottom base, a plurality of upright long posts spaced around an outer circumferential edge of the bottom base, and a plurality of independent spiral pipe units orderly placed on the bottom base. Each spiral pipe unit consists of supporting rods radially arranged and a spiral pipe supported on the supporting rods. The outer end of each supporting rod is fixed with the upright long post, and two ends of each pipe have a joint. A vertical inlet pipe and a vertical outlet pipe are provided to stand just outside the bottom base, having a plurality of connecting mouths to connect to the joints of each pipe and their upper ends extending out of the temperature-preserving tank to function as an inlet and an outlet for freezing liquid.