A connector module that has an inexpensive configuration and a high shielding ability is provided. The connector module includes a terminal module and a shield case. The terminal module has a central conductor, a tubular insulator holder that supports the central conductor, and a tubular conductive shell. A bottom portion of the shield case has multiple elastic portions that are capable of elastic deformation and are bent from and protrude from an edge portion of an opening portion for passage of the terminal module. The terminal module is joined to the shield case in a state where the annular recession portion of the conductive shell and the elastic portions are in electrical contact with each other.