Abstract: Disclosed are a support mechanism and a transport container, the technical field of support and accommodation mechanism is involved, comprising at least one group of supporter, each group of the supporters comprises two opposite support plates, and two of the support plates belonging to a same group are configured to jointly form a placement opening for insertion of a mandrel, wherein a top wall of one of the support plates is provided with a positioning block, and a bottom wall of another corresponding one of the support plates is provided with a positioning slot for insertion of the positioning block.