To provide a pull-closing bag whose opening can be closed by pulling a string.

A bag 1 has at least front and rear walls 9 opposite to each other. String holes 3 for putting a string 2 therethrough are formed on the upper part of each wall 9. An end of the string 2 coming out of the string hole 3 on a front face is put through the string hole 3 on a rear face that is opposite to the string hole 3 on the front face, and is fixed at a stopper part 4. Grab areas 5 of the string 2 are pulled to close the opening 6 of the bag 1. A sub-hole 7 is formed adjacent to each string hole 3 so that the string 2 comes out of the sub-holes 7 to form the grab areas 5 at a position at which a user grabs the string 2 easily. The upper part of the bag 1 is folded to form a bag-folded part 8, where the string holes 3 are formed and the string 2 comes out of the sub-holes 7 to form the grab areas 5 outside the bag 1 at the position at which the user grabs the string 2 easily. Because the string holes 3 are located in the bag-folded part 8, passage areas 10 extended as a result of opening the bag 1 stay on the bag-folded part 8. The passage areas 10, therefore, do not hamper putting an article in or taking the same out of the bag 1.