The invention discloses a female connector with an improved clamping buckle structure. The female connector comprises a rectangular front sleeve seat; a terminal seat is molded at the rear end of thefront sleeve seat; a linear notch is formed in the upper end surface of the front sleeve seat; a cantilever hook clamping buckle is molded on the rear end surface of the notch; an n-shaped front pullring is molded on the upper end surface of the front end of the cantilever hook clamping buckle; an n-shaped rear pull ring located to the rear side of the notch is molded on the upper end surface ofthe front sleeve seat; vertical side plates located at two sides of the middle of the notch are molded on the upper end surface of the front sleeve seat; vertical guide grooves are formed in the sideplates; horizontal blocking rods are arranged at the front side and rear side of the guide grooves; one end of a tying strap is fixed onto the front pull ring; the other end of the tying strap bypasses the blocking rods and is fixed to the rear pull ring; an inverted T-shaped pressing block on the tying strap abuts against the tying strap; and two ends of the lower end of the T-shaped pressing block are respectively inserted into the guide grooves of the side plates. According to the female connector of the invention, the shifting component of the clamping buckle is modified, so that the shifting of the clamping buckle can be facilitated; and a stroke limit is set for the structure of the clamping buckle, and therefore, the fracture of the clamping buckle caused by an excessive force can be avoided.