In order to improve the aqueous solubility of phloretin （PT） in aqueous， steviol glycosides （STE）， which can self-assemble to form micelles， was used to prepare steviol glycosides-phloretin micellar（STE-PT MC） complex. At the same time， in vitro release and kinetics of PT alone and PT from STE-PT MC were also investigated. The results showed that STE exhibited significant solubility enhancement on PT and 1.03 g of STE can completely dissolve 30 mg of PT in 10 mL of water under the optimum preparation conditions. STE-PT MC was spherical with an average droplet size of 5.26 nm and without any chemical reaction taken place between STE and PT. In vitro release amounts of PT from STE-PT MC in simulate intestinal fluid and stimulate gastric fluid were 3 to 7 times of that of PT alone. In addition， in vitro release kinetics of PT alone and PT from STE-PT MC were significantly different. The STE-PT MC without any other ingredients addition has a simple preparation process and good practicability in food industry.