A refrigerator, comprising: a main body that includes a refrigerating chamber and a freezing chamber; a door that is configured to open and close at least a portion of the refrigerating chamber; an ice making unit configured to produce ice; and an ice storage unit that is provided at the door and that is configured to store ice produced in the ice making unit, the ice storage unit including: a housing; a storage basket that is removably coupled to the housing, and is configured to store ice removed from the ice making unit; and a sensing apparatus that is provided at the housing and senses attachment or detachment of the storage basket; and a controller configured to control transfer of ice produced by the ice making unit to the storage basket based on output from the sensing apparatus that indicates attachment or detachment of the storage basket, wherein the housing includes: a loading part on which the storage basket is loaded; characterized in that: at least a part of a front surface of the ice making unit is inclined downward, wherein an ice discharging hole is defined on the inclined at least a part of a front surface of the ice making unit, and an upper surface of the housing has a coupling surface that is inclined to correspond to the inclined at least a part of a front surface of the ice making unit, wherein the coupling surface includes an ice injecting hole, wherein the housing includes: a guide rail that is provided on at least one side of the loading part and guides movement of the storage basket. a main body that includes a refrigerating chamber and a freezing chamber; a door that is configured to open and close at least a portion of the refrigerating chamber; an ice making unit configured to produce ice; and an ice storage unit that is provided at the door and that is configured to store ice produced in the ice making unit, the ice storage unit including: a housing; a storage basket that is removably coupled to the housing, and is configured to store ice removed from the ice making unit; and a sensing apparatus that is provided at the housing and senses attachment or detachment of the storage basket; and a controller configured to control transfer of ice produced by the ice making unit to the storage basket based on output from the sensing apparatus that indicates attachment or detachment of the storage basket, a housing; a storage basket that is removably coupled to the housing, and is configured to store ice removed from the ice making unit; and a sensing apparatus that is provided at the housing and senses attachment or detachment of the storage basket; and a controller configured to control transfer of ice produced by the ice making unit to the storage basket based on output from the sensing apparatus that indicates attachment or detachment of the storage basket, a loading part on which the storage basket is loaded; characterized in that: at least a part of a front surface of the ice making unit is inclined downward, wherein an ice discharging hole is defined on the inclined at least a part of a front surface of the ice making unit, and an upper surface of the housing has a coupling surface that is inclined to correspond to the inclined at least a part of a front surface of the ice making unit, wherein the coupling surface includes an ice injecting hole, wherein the housing includes: a guide rail that is provided on at least one side of the loading part and guides movement of the storage basket. at least a part of a front surface of the ice making unit is inclined downward, wherein an ice discharging hole is defined on the inclined at least a part of a front surface of the ice making unit, and an upper surface of the housing has a coupling surface that is inclined to correspond to the inclined at least a part of a front surface of the ice making unit, wherein the coupling surface includes an ice injecting hole, wherein the housing includes: a guide rail that is provided on at least one side of the loading part and guides movement of the storage basket.