To obtain a trousers pocket for a cellular phone, capable of simply taking in and out the cellular phone, not dropping the cellular phone in sitting.

A pocket of exclusive use is attached to the side of the thigh of trousers as one method for satisfying conditions that when a person carries a cellular phone, the cellular phone is simply taken in and out, a call is heard, a vibration is felt, the cellular phone is never dropped, an action is not disturbed and if the pocket is placed at a visible place, it has a good appearance. A device is adopted not to drop the cellular phone in sitting. The mouth of the pocket is made wider than a width to introduce the cellular phone and a part 5 to become an underside in sitting is closed to such a degree as to readily put the cellular phone into the pocket. Then, even if the pocket is laid, the cellular phone is caught by the closed part and does not drop. When the cellular phone is taken out, the cellular phone is a little raised and drawn out. The cellular phone is taken out by directly raising a strap 4 in standing.