The present disclosure relates to a vehicle table device that is extracted toward a driver or a passenger to place foods or books thereon for a simple meal or reading, and a method of controlling a virtual keyboard thereof. The method includes: determining a state of a table accommodated inside a housing by a controller; determining a position of a monitor by the controller when, in the determining of the state of the table, the table is determined to be extracted from the housing; and activating a virtual keyboard on the table by the controller when, in the determining of the position of the monitor, the monitor is determined to be located on a passenger seat side.