A refrigerator comprising: a storage chamber configured to store food; a cooler configured to supply cold into the storage chamber; a first tray assembly configured to define a portion of an ice making cell , wherein the portion is a space in which water is phase-changed into ice by the cold; a second tray assembly configured to define another portion of the ice making cell , wherein the other portion is a space in which water is phase-changed into ice by the cold; a water supply part configured to supply the water into the ice making cell ; a transparent ice heater disposed adjacent to at least one of the first tray assembly or the second tray assembly ; and a controller configured to control the transparent ice heater , wherein the controller controls the transparent ice heater to be turned on in at least partial section while the cooler supplies the cold so that bubbles dissolved in the water within the ice making cell moves from a portion, at which the ice is made, toward the water that is in a liquid state to make transparent ice, and the controller controls the transparent ice heater so that when a heat transfer amount between the cold within the storage chamber and the water of the ice making cell increases, a heating amount of the transparent ice heater increases, and when the heat transfer amount between the cold within the storage chamber and the water of the ice making cell decreases, the heating amount of the transparent ice heater decreases so as to maintain an ice making rate of the water within the ice making cell within a predetermined range that is less than an ice making rate when an ice making is performed in a state in which the transparent ice heater is turned off. a storage chamber configured to store food; a cooler configured to supply cold into the storage chamber; a first tray assembly configured to define a portion of an ice making cell , wherein the portion is a space in which water is phase-changed into ice by the cold; a second tray assembly configured to define another portion of the ice making cell , wherein the other portion is a space in which water is phase-changed into ice by the cold; a water supply part configured to supply the water into the ice making cell ; a transparent ice heater disposed adjacent to at least one of the first tray assembly or the second tray assembly ; and a controller configured to control the transparent ice heater , wherein the controller controls the transparent ice heater to be turned on in at least partial section while the cooler supplies the cold so that bubbles dissolved in the water within the ice making cell moves from a portion, at which the ice is made, toward the water that is in a liquid state to make transparent ice, and the controller controls the transparent ice heater so that when a heat transfer amount between the cold within the storage chamber and the water of the ice making cell increases, a heating amount of the transparent ice heater increases, and when the heat transfer amount between the cold within the storage chamber and the water of the ice making cell decreases, the heating amount of the transparent ice heater decreases so as to maintain an ice making rate of the water within the ice making cell within a predetermined range that is less than an ice making rate when an ice making is performed in a state in which the transparent ice heater is turned off. <EOS>