The analysis on fiber quality difference of different cotton varieties is of great significance for the development of early cotton breeding target. A total of 16 transgenic early cotton varieties were authorized in Hebei Province from 2006 to 2016, the fiber quality of each variety was analyzed and evaluated according to NT/T1297—2007. The results showed that the new varieties in recent years belonged to the type of medium and short cashmere. The fiber strength was the main factor affecting cotton fiber ty...