The application discloses a small
circuit breaker movable contact connecting structure and a small
circuit breaker. The movable contact connecting structure comprises a movable contact and a contact support. A
waist-shaped hole is arranged on the surface of the contact support, the
waist-shaped hole is used for arranging a first hinged shaft to hinge the contact support to a
circuit breaker base, and the contact support can slide along the
long axis direction of the
waist-shaped hole under the radial limitation of the first hinged shaft; an
insertion warehouse for partially inserting the movable contact is arranged on the side wall of the contact support. During the closing process of the small circuit breaker, the contact support is forced to rotate around the first hinged shaft to a preset angle, then the movable contact and the static contact abut against each other, the contact support continues to be forced to make the contact support translate relative to the base, and the first hinged shaft in the waist-shaped hole is relatively translated to the other side along the
long axis direction from one side of the waist-shaped hole. The application discards the mode of fixing the movable contact in the traditional circuit breaker, and has the advantages of stable connection and simple structure.