A refrigerator with an ice maker, comprising: a refrigerator body , having a cryogenic storage compartment; a partition plate , disposed at an inner liner of the refrigerator body to partition the cryogenic storage compartment; an ice maker disposed in the cryogenic storage compartment; the ice maker comprising: an ice maker rack , fixedly mounted on the partition plate ; an ice tray, detachably mounted in the ice maker rack , the ice tray comprising: an ice tray rack detachably mounted in the ice maker rack ; an ice cube tray disposed in the ice tray rack ; an ice-overturning motor disposed at a side of the ice tray rack ; an ice detection rod disposed on the ice-overturning motor ; characterized in further comprising: a magnet , disposed on the ice tray; a magnetism-sensitive switch , disposed at the bottom of the partition plate to perceive whether the ice tray is injected with water from a water tank in cooperation with the magnet ; a handle , disposed at an end of the ice tray rack away from the ice-overturning motor ; and a knob , rotatably disposed at an end of the ice maker rack to rotatably lock or unlock the handle and the ice maker rack . a refrigerator body , having a cryogenic storage compartment; a partition plate , disposed at an inner liner of the refrigerator body to partition the cryogenic storage compartment; an ice maker disposed in the cryogenic storage compartment; the ice maker comprising: an ice maker rack , fixedly mounted on the partition plate ; an ice tray, detachably mounted in the ice maker rack , the ice tray comprising: an ice tray rack detachably mounted in the ice maker rack ; an ice cube tray disposed in the ice tray rack ; an ice-overturning motor disposed at a side of the ice tray rack ; an ice detection rod disposed on the ice-overturning motor ; characterized in further comprising: a magnet , disposed on the ice tray; a magnetism-sensitive switch , disposed at the bottom of the partition plate to perceive whether the ice tray is injected with water from a water tank in cooperation with the magnet ; a handle , disposed at an end of the ice tray rack away from the ice-overturning motor ; and a knob , rotatably disposed at an end of the ice maker rack to rotatably lock or unlock the handle and the ice maker rack . an ice maker rack , fixedly mounted on the partition plate ; an ice tray, detachably mounted in the ice maker rack , the ice tray comprising: an ice tray rack detachably mounted in the ice maker rack ; an ice cube tray disposed in the ice tray rack ; an ice-overturning motor disposed at a side of the ice tray rack ; an ice detection rod disposed on the ice-overturning motor ; characterized in further comprising: a magnet , disposed on the ice tray; a magnetism-sensitive switch , disposed at the bottom of the partition plate to perceive whether the ice tray is injected with water from a water tank in cooperation with the magnet ; a handle , disposed at an end of the ice tray rack away from the ice-overturning motor ; and a knob , rotatably disposed at an end of the ice maker rack to rotatably lock or unlock the handle and the ice maker rack . an ice tray rack detachably mounted in the ice maker rack ; an ice cube tray disposed in the ice tray rack ; an ice-overturning motor disposed at a side of the ice tray rack ; an ice detection rod disposed on the ice-overturning motor ; characterized in further comprising: a magnet , disposed on the ice tray; a magnetism-sensitive switch , disposed at the bottom of the partition plate to perceive whether the ice tray is injected with water from a water tank in cooperation with the magnet ; a handle , disposed at an end of the ice tray rack away from the ice-overturning motor ; and a knob , rotatably disposed at an end of the ice maker rack to rotatably lock or unlock the handle and the ice maker rack . <EOS>