The utility model discloses a multipurpose adjustable electric hole digger, and relates to the technical field of hole diggers, in particular to a multipurpose adjustable electric hole digger which comprises a base, a fixing bolt is arranged on the upper surface of the base, a connecting seat is sleeved at the upper end of the fixing bolt, and a connecting sliding rod is arranged on the upper surface of the connecting seat. The outer surface of the connecting sliding rod is sleeved with a control frame, a limiting box is arranged on the outer surface of the control frame, a supporting sliding rod is arranged in the limiting box, the outer surface of the supporting sliding rod is slidably connected with a connecting plate, a limiting column is arranged on one side of the connecting plate, a first spring is arranged on the outer surface of the connecting plate, and a limiting hole is formed in the outer surface of the connecting sliding rod. According to the multi-purpose adjustable electric hole digger, the control frame, the limiting box, the connecting sliding rod, the limiting column and the limiting hole are arranged in a matched mode, so that the multi-purpose adjustable electric hole digger has the effect that the control frame is changed into a telescopic rod, and the multi-purpose adjustable electric hole digger is suitable for people with different heights to use.