To provide a fixing structure for a vehicle window glass, which does not require two separately arranged processes for fixing interior members in a vehicle room, when two different types of the members are produced on one production line.

The end part 8a of an interior member 7 is arranged so that the end part approaches a flange 6 on the inner rim of a vehicle opening 5, the end part being able to be bent toward the inside of the vehicle. While a weather strip 12 is attached to the outer rim of the window glass 11, an auxiliary fixing adjuster 14 is hooked on the weather strip, wherein the auxiliary fixing adjuster is manipulated by pulling it from the inside of the vehicle as the end part 8a is vent toward the inside of the vehicle. Thus the structure is available, in which the weather strip 12 can be mounted on the flange 6 from the outside of the vehicle body while the auxiliary fixing adjuster 14 is removable.