The invention discloses an ablation prevention method for an inner surface for a launching tube and the launching tube applying the method, relates to the ablation prevention method for the inner surface for a composite launching tube and the launching tube applying the method and aims at providing the ablation prevention method for the inner surface for the launching tube with capabilities of increasing the repeated use amount of the composite launching tube and lowering the launching cost and the launching tube applying the method. The ablation prevention method for the inner surface for the launching tube comprises the following steps that according to the speed of a combustion-gas stream eroding the inner tube wall of the launching tube when a missile is ejected, the inner tube wall of the launching tube is divided into different regions: a mild ablation region (3), a moderate ablation region (2) and a severe ablation region (1); a high-temperature curing fabric lining layers are arranged on the inner surface of the whole launching tube; a resin rich layer is arranged on the inner side of the lining layer of the moderate ablation region; and an ablation prevention coating is arranged on the inner side of the lining layer of the severe ablation region. The invention also provides the launching tube with application of the ablation prevention method for the inner surface for the launching tube.