A tank container comprising: a tank body ; and a frame supporting the tank body , including : two end frames for respectively supporting two ends of the tank body ; a plurality of saddles disposed at intervals along the longitudinal direction of the tank body and supporting the bottom of the tank body , wherein each of the saddles is provided with a concave bearing surface which is matched with the circumferential contour shape of the bottom of the tank body to bear the tank body ; and a bottom supporting component for connecting one of the end frames and the adjacent saddle , including: a connecting beam , one end of which is connected to a bottom corner of the end frame , the other end of which is connected to the saddle , wherein an interval height is formed between the connecting position of the connecting beam and the saddle and the bottom of the saddle , and a supporting member connected to one end of the connecting beam that is close to the adjacent saddle , and provided integrally with a supporting plate extending longitudinally along the tank body and the supporting plate fixedly connected to the tank body , characterised in that the supporting member is integrally formed by bending, and further comprises a transition plate connected to the supporting plate by bending and a connecting plate connected to the transition plate by bending; wherein the connecting plate is connected to the connecting beam and parallel with the axis of the connecting beam . a tank body ; and a frame supporting the tank body , including : two end frames for respectively supporting two ends of the tank body ; a plurality of saddles disposed at intervals along the longitudinal direction of the tank body and supporting the bottom of the tank body , wherein each of the saddles is provided with a concave bearing surface which is matched with the circumferential contour shape of the bottom of the tank body to bear the tank body ; and a bottom supporting component for connecting one of the end frames and the adjacent saddle , including: two end frames for respectively supporting two ends of the tank body ; a plurality of saddles disposed at intervals along the longitudinal direction of the tank body and supporting the bottom of the tank body , wherein each of the saddles is provided with a concave bearing surface which is matched with the circumferential contour shape of the bottom of the tank body to bear the tank body ; and a bottom supporting component for connecting one of the end frames and the adjacent saddle , including: a connecting beam , one end of which is connected to a bottom corner of the end frame , the other end of which is connected to the saddle , wherein an interval height is formed between the connecting position of the connecting beam and the saddle and the bottom of the saddle , and a supporting member connected to one end of the connecting beam that is close to the adjacent saddle , and provided integrally with a supporting plate extending longitudinally along the tank body and the supporting plate fixedly connected to the tank body , characterised in that the supporting member is integrally formed by bending, and further comprises a transition plate connected to the supporting plate by bending and a connecting plate connected to the transition plate by bending; wherein the connecting plate is connected to the connecting beam and parallel with the axis of the connecting beam . <EOS>