To provide a base fabric for hollow weave air bag excellent in gastightness, using polyhexamethylene adipamide fiber with 100-500 dtx, free from weaving wrinkles.

The invention relates to the method for producing hollow weave base fabric for air bag comprising an expandable double knitted section and a non-expandable single knitted section, using the polyhexamethylene adipamide fiber with 100-500 dtx, wherein the number of woof threads used in at least a part of the upper web and the bottom web forming the hollow weave base fabric are different, and the number of the woof threads satisfy following formula (1), nb<na, in the formula na is the number of the threads with large number na threads/unit bag part, nb is the number of the threads with smaller number nb threads/unit bag part.