Abstract: The invention relates to a robot mobile phone jacket support frame, including two brackets A(1) and B(2), three pins A(3), B(4) and C(5). Wherein, pin A(3) is inlaid in bracket A(1); pin C (5) is installed into the two holes on bracket B (2); bracket B(2) is fixed in bracket A(1) through pin B(4) to become a bracket assembly; the free end of bracket B (2) of the bracket assembly is installed in a single bottom sliding slot, and the bulges of pin A(3) are slid into the axle holes through the corresponding guiding holes on the single bottom. The support frame is firm and the brackets are convenient to fold, the appearance is beautiful, the brackets can perfectly match the appearance, three-dimensional sense is strong, and the support frame is suitably designed on the protective jackets of various bar smart mobile phones with 4-inch screen or above.