The invention discloses a serialized direct-evaporation-type high-efficient multi-temperature ice storing tank. The high-efficient multi-temperature ice storing tank does not use the ethylene glycol as the heat-transfer medium, and is capable of directly conveying the high-temperature and high-pressure organic refrigerant liquid into an evaporator for evaporating and refrigerating after throttling, absorbing the sensible heat and latent heat of the water in the tank, making ice and cooling. The serialized direct-evaporation-type high-efficient multi-temperature ice storing tank is consist of the multi-temperature ice storing tank, the evaporator, a circulation water pump, an ice nucleus generator, a water flow distributor, a splitter plate, a chilled water region, a belt-type temperature sensor, a liquid level meter, an electric proportional-integral regulating valve and the like. The serialized direct-evaporation-type high-efficient multi-temperature ice storing tank is capable of providing the chilled water with different temperatures which is used for low-temperature dehumidification and indoor cooling. The advanced technologies, such as circulation water pump, the ice nucleus generator, and the water flow distributor, are used for improving the icing rate and the icing speed, the ice storing amount is large, the cost is low and the application is extensive, various air condition ice storing tanks can be replaced by the serialized direct-evaporation-type high-efficient multi-temperature ice storing tank. The serialized direct-evaporation-type high-efficient multi-temperature ice storing tank is one of the main devices of the patent 'serialized direct-evaporation-type ice-water cooling double-cold-source air condition system' (patent number 201410359231.1).