Connector assembly and shielding electrical connector thereof

The present invention relates to a connector assembly and a shielding electrical connector thereof. The shielding electrical connector of the present invention includes a floating contact portion which is elastically stretchable or deformable along a front-rear direction or a direction perpendicular to the front-rear direction; and the floating contact portion is in electrically conductive connection with a connector housing through an electric conduction structure. An adapting connector housing is provided with a contact connection portion which is in elastically abutting matching with the floating contact portion after the connector and the adapting connector are engaged in place; and the floating contact portion can be attached to a corresponding side wall of the contact connection portion under the elastic force of the floating contact portion; and therefore, when the connector assembly works normally, the connector housing on a socket connector can main effective electric connection with the adapting connector housing through the matching of the floating contact portion and the contact connection portion, and current on the connector housing or the adapting connector housing which is not grounded directly can be led out through the grounding conductor of the adapting connector housing or the connector housing, and the overall shielding of the connector assembly is realized.