Folding sofa

The utility model discloses a folding sofa. The folding sofa comprises a sofa body, the sofa comprises a sofa body, the sofa body comprises a plurality of storage parts, the storage parts are arranged in an annular sleeving mode, so that the sofa body is in a first state, one side of the storage part on the innermost side is movably connected with an opening and closing assembly, and a volume cavity is formed; the plurality of storage parts are unfolded and arranged, and are changed into a second state from a first state, so that the sofa body is supported in the second state; and the supporting pillow is detachably arranged on one side of the storage part. According to the device, by designing the storage pieces which can be installed in a ring sleeving mode, in the first state, articles can be stored in the volume cavity, carrying is conducted through the straps, use is more convenient, in the second state, the multiple storage pieces are sequentially unfolded and arranged, the device can be used as a sofa