A sheet feeding device includes a loading portion configured to be loaded with a sheet, a lifting mechanism that lifts the loading portion in an operating state and stops the loading portion in an stopped state, a cam configured to be rotated alternately to a first rotational position for setting the lifting mechanism to the operating state and to a second rotational position for setting the lifting mechanism to the stopped state, a detecting unit having a contact portion movable up and down while contacting the sheet on the loading portion, which detects whether the sheet reaches a first height based upon the movement of the contact portion thereof, and a control unit configured to rotate the cam before the detecting unit detects that the sheet reaches the first height and to stop the cam in the second rotational position in response to the detection by the detecting unit.