It is provided a multilayer tube having a layer containing a specific aliphatic polyamide composition and a layer containing a semi-aromatic polyamide composition which contains a semi-aromatic polyamide having a specific structure or a mixture thereof, and the both layers being disposed adjacent to each other, wherein the aliphatic polyamide composition contains an aliphatic polyamide having a melting point of a specific value or less, and a ratio of the number of the methylene groups to the number of the amide groups is a specific value or more, an aliphatic polyamide having an absolute value of a difference in solubility parameter SP values to that of the aliphatic polyamide being a specific range, and an elastomer polymer containing a constitutional unit derived from an unsaturated compound having a carboxyl group and/or an acid anhydride group.