A canister-type thruster is disclosed. The canister-type thruster according to an embodiment of the present invention comprises: a canister lifting within a trunk of a hull or a floating structure; a canister sheet provided in the lower part of the inner surface of the trunk and on which the canister is put; a lifting device for lifting the canister; and a sealing device for sealing a gap between the canister and the trunk, wherein the canister sheet and the sealing device are connected.
