A pallet container is used to transfer loose cargoes including frame members. The frame member has a rail connected to two posts. Each post is mounted with a nesting. The pallet container has a base frame which is formed by beams; a pair of first side frames and a pair of second side frames respectively formed by the base frame and post members of the invention. Each post member comprising a first post, provided at a corner of the base frame; a second post, spaced from the first post and mounted to the base frame by a reinforced plate, in which a cavity is provided. The pallet container equipped with the post member can be stable to load the frame member by inserting the second post of the present invention into the post of the loaded frame member.