The invention discloses a folding-type rack container, which comprises an underframe, an end wall, a side wall, a two-box connecting component and a box vehicle connecting component, wherein the side wall comprises side columns, a side wall hinged support and pipe-protecting through holes; the side columns are arranged on two sides; the side wall hinged support is jointed and fixed with the two sides of the side columns; the pipe-protecting through holes are formed on the lower end part of each of the side columns and on the corresponding side wall hinged support; the side wall is fixed by a side wall holder; the side wall holder comprises a vertical plate and pin shafts; the vertical plate is fixed on the underframe and is used to be jointed with the outside of the side wall holder; vertical plate through holes, which correspond to the pipe-protecting through holes, are formed on the vertical plate; and the pin shafts are used to be inserted into the pipe-protecting through holes and the vertical plate through holes to fix the side wall. Due to the adoption of the side wall holder, the folding-type rack container can firmly fix the side wall on the position vertical to the underframe and can bear the external force applied in the transportation of the side wall vertical to the underframe and ensure the side wall not to fall so as to save time and labor force, without folding and placing the side wall on the underframe during returning the empty container.