Abstract: A connector structure is easy for assembling and has good resistance to scratch, which has ability of overcoming the disadvantage of conventional connector that is susceptible to scratch. Wherein between a mouth and engaging holes of a female member of the connector is respectively defined with a protrusion being “z,900” shaped in cross section and having a slide track interiorly formed therein, the edges of the protrusions are structured at an optimal angle with corresponding to the round engaging knobs of the male member, by this way, the edge of the protrusions and the engaging knobs of the connector of the present invention may be prevented from being scratched, and the “z,900” shaped structure is conducive to improve the endurance of the female member of the connector.