The invention relates to a split type small-sized manned lunar surface lander sealed cabin. The split type small-sized manned lunar surface lander sealed cabin comprises a docking mechanism, a passage, a main cabin body and a side scuttle, wherein the docking mechanism, the passage and the main cabin body are connected with each other in sequence; the side scuttle is supported on the main cabin body; the side scuttle comprises a first side scuttle part and a second side scuttle part; the first side scuttle part can be opened in a direction far away from the second side scuttle part; and the second side scuttle part can be opened in a direction far away from the first side scuttle part. According to the split type small-sized manned lunar surface lander sealed cabin, as the side scuttle comprises the first side scuttle part and the second side scuttle part which can oppositely opened, the side scuttle can also be used as a sealed cabin door; and therefore, the floor space of the sealedcabin door in the prior art is saved, the structure of the sealed cabin is made more compact and the light of the sealed cabin is made much lighter.