The utility model discloses a local connection structure of a steel/aluminum hybrid passenger car body frame. A local connection structure of a steel/aluminum hybrid passenger car body frame comprisesa car body aluminum alloy pipe (1), a car body steel pipe (2), a connection steel sheet (3) and a connection bolt (4). Two first circular through holes (5) are formed in the connected part of the vehicle body aluminum alloy pipe (1); connecting steel sheets (3) are welded on the two sides of the connecting part of the vehicle body steel pipe (2) respectively; the connecting steel sheet (3) is L-shaped and is provided with a circular through hole (6); the circular through hole (5) and the circular through hole (6) are both connected positions of the bolt (4); The car body aluminum alloy pipe (1) and the upper connecting steel sheet (3) welded to the car body steel pipe (2) are mechanically connected through the connecting bolt (4), low-cost and effective connection of two different materials of passenger car body framework steel and aluminum can be achieved, and the rigidity and strength of a connecting area are improved to a certain degree.