An extension-type holder comprising a cover, a movable base, a tube and an extensible rod assembly, the cover has an eccentric rod, the movable base has an eccentric pipe, a rotating joint is disposed between the extensible rod assembly and the tube, wherein the eccentric pipe can contain the eccentric rod, the tube can contain the movable base, a holding space can be formed between a cover and a movable base when the eccentric rod and the movable base is in an extending state.
