Foldable sofa

A foldable sofa, comprising a first base block (1), wherein an upper side of the first base block (1) serves as a first use face, a side face of one side of the first base block (1) serves as a front face, a first backrest fence (2) is arranged on the first use face, a first fence groove (21) which faces the front face and matches a human body is provided in the first backrest fence (2), and the first fence groove (21) and the first use face cooperate to enclose a sofa use portion;

• and a second base block (3) is arranged on a lower side of the first base block (1), a lower portion of the side, close to the front face, of the first base block (1) is hinged to the second base block (3), a second use face corresponding to the first use face is arranged on the second base block (3), when the second base block (3) is turned to be flush with the first base block (1), the second use face is relatively flush with the first use face, a second backrest fence (4) is arranged on the first backrest fence (2), an upper portion of the side, close to the front face, of the first backrest fence (2) is hinged to the second backrest fence (4), and the second backrest fence (4) is provided with a second fence groove (41) corresponding to the first fence groove (21).