To provide an easy-to-carry multifunctional bag which can be used as a bench cushion to make a prolonged game watching bearable and enables the loading and unloading of an article in a sitting posture.

The multifunctional bag 1 of this invention has both the function as the bench cushion to be mounted and used on a bench 3 and an original function as the bag to store and carry the article, and is equipped with a cushion storing section 7 which can be used as the bench cushion by storing a cushion 5 and a bag body of the bag 13 which is connected to one end side 9 of the cushion storing section 7 and has a small articles-storing pocket 11 at a front face 21. Also, when the cushion storing section 7 is used as the bench cushion, the bag body of the bag 13 is hung down from a front end edge of the bench 3 and an aperture of the small articles-storing pocket 11 faces upward.