To provide a kerosene supply pump holding case adaptable to all of four types of polyethylene cans different in an inlet boss part diameter and a height respectively, in a stable fixing state.

The holding case comprises a bearing case 10 having a tubular part with a bottom in which a suction tube of the kerosene supply pump is inserted, and a bearing case holder 20 holding the tubular part of the case 10. The case holder 20 has openings 24 and 25, which can pass an inlet boss part 31 having two types of diameters on a plastic canteen 30, at both end portions respectively, and has a case insertion part 21, which passes the case tubular part, at the middle part. At least any one of the case tubular part and the case insertion part of the case holder has holding means 11 and 12, or 28 and 29 capable of positioning and holding the case at a high or a low position. The case holder has flexible parts 26 and 27, which can be folded and recovered, between each opening and the case insertion part.