Abstract: An automatic ice making apparatus for freezing ice making water into ice having the shape of a cube or the like and storing the ice in an ice bank, in which the quantity of the ice stored in the ice bank is detected by a stored ice detecting device, and when the stored ice quantity is small or zero, the ice making operation is continued, while when the stored ice quantity corresponds to a predetermined quantity, the ice making operation is stopped. A stored ice detecting arm is provided replaceably through a joint member in order to attain an easy setting of the above stored ice quantity, that is, an easy adjustment of a detection level for the ice bank.