Sandwich-structure all-composite-material launching canister

The invention discloses a sandwich-structure all-composite-material launching canister, and relates to an all-composite-material launching canister which is of a sandwich structure. The invention aims at providing a sandwich-structure all-composite-material launching canister which is high in load-bearing efficiency and light in weight. The sandwich-structure all-composite-material launching canister which is provided by the invention comprises a canister section (1) and a primary holding chamber (2), wherein the primary holding chamber is fixedly connected with the canister section; the canister section comprises an inner canister (11), and outer canister (13) and a foam sandwich (12); the foam sandwich is located between the inner canister and the outer canister; both the inner canister and the outer canister are made from fibrous pre-impregnated materials; and the thickness ratio of the inner canister to the outer canister is 1.2 to 1.4.