An enema device for washing a large intestine that can supply water to a large intestine to easily wash and defecate the large intestine. The enema device for washing a large intestine includes a nozzle part inserted into an anal passage and having an ejection hole for ejecting water at one end thereof； a balloon part coupled to an outer peripheral surface of the nozzle part to be expanded； an air pump configured to supply air to the balloon part； a switching valve, to which the air pump is connected； a first water hose, an air hose, and a second water hose； the nozzle part has a discharge hole through which air supplied from the air hose is discharged to the balloon part.
