Abstract: A vehicle body structure having a lock device for use of a package tray installed in a vehicle. A package tray is provided within a luggage compartment to conceal a luggage from the outside. In a two box car, a luggage compartment is communicated with a passenger compartment. Hence, even if a hatch back door is closed and locked, a luggage put in a luggage compartment might be stolen if a front or rear door is opened. The lock device makes the package tray locked, thereby disconnecting the communication between the passenger compartment and the luggage compartment.