Foldable sofa

A foldable sofa, comprising a first base block, wherein an upper side of the first base block serves as a first use face, a side face of one side of the first base block serves as a front face, a first backrest fence is arranged on the first use face, a first fence groove which faces the front face, and is configured to fit a body of a user, is provided in the first backrest fence, and the first fence groove and the first use face cooperate to enclose a sofa use portion;

• and a second base block is arranged on a lower side of the first base block, a lower portion of the lower side, closest to the front face, of the first base block is hinged to the second base block, a second use face corresponding to the first use face is arranged on the second base block, when the second base block is turned to be flush with the first base block, the second use face is flush with the first use face, a second backrest fence is arranged on the first backrest fence, an upper portion of a side, closest to the front face, of the first backrest fence is hinged to the second backrest fence, and the second backrest fence is provided with a second fence groove corresponding to the first fence groove.