Abstract: A mini electrical connector for electrically connecting an exterior mating connector and a circuit board, mainly comprises an insulative housing, a first shell means and a second shell means. The first shell means includes a shielding portion which has a third retentive section for locking a protrusion formed on the housing and has an orienting section. The second shell means includes a pair of first retentive sections for retentive cooperation with the orienting sections of the first shell means, and a pair of second retentive sections for retentive cooperation with the housing. By means of the first retentive sections, the second retentive sections and the third retentive section, the connector is easy and convenient to be assembled with the first shell means and the second shell means for some connector manufacturers.