A console module is installed on the floor panel of a vehicle and includes a console main body, an electronic component, and an installation base. The installation base is located between the console main body and the floor panel. Both of the console main body and the electronic component are installed on the floor panel by means of the installation base. The installation base has first and second console brackets for securing the console main body to the floor panel, and a case for accommodating the electronic component. The installation base further includes a pair of rails that extend along the vehicle fore-and-aft direction between the case and the second console bracket.