To provide a table-shaped bag for automobile which can be held horizontal so that a user can work on a rear seat having a wide space while sticking the table-shaped bag to his/her body without pressing the upper limbs.

Stretching supporting legs 12 adjustable in the height according to the height of a seat 13 and supporting legs 11 are additionally provided on the bottom of the bag and positions to fix the supporting legs, supporting positions and the lengths of the supporting legs are adjusted so that the surface of the table-shaped bag can be set as a horizontal plane in front of a human body sitting on the seat. The table-shaped bag for automobile is in close contact with the front of the body of the human body and positioned to present the functions of both arms at a maximum and can be utilized as a mobile study capable of being parked in the location of suitable natural environments such as sunshine and ventilation.