The utility model provides an anti-freezing device for a ground impregnating fluid drill hole. The anti-freezing device comprises an anti-freezing box shell of a box-type structure on an anti-freezing box base; one side of the top of the anti-freezing box shell is provided with a through hole, and the through hole is plugged through a top cap; the bottoms of four lateral surfaces of the anti-freezing box shell are respectively provided with side holes for draining water; the surface of the anti-freezing box base is correspondingly provided with two circular holes; and four side ends of the anti-freezing box base are respectively connected with bolt buckles for fixing the anti-freezing box base. The device has simple structure, is high in construction speed, and can be reused. After the technical scheme of the utility model is adopted, the opening of the drill hole and an injection pipe are not exposed in the air any more, so the heat exchange rate with the external environment is low, and the injection pipe and the opening of the hole are prevented from being frozen.