Where there any female emperors in china?

Yes, there have been several female emperors in Chinese history. The most notable female emperor was Wu Zetian, who ruled China from 690 to 705 during the Tang dynasty. She was the only woman to ever claim the title of emperor in Chinese history. Other female emperors include Empress Lü Zhi, who ruled China from 194 to 180 BCE, and Empress Dowager Cixi, who ruled China from 1861 to 1908 as regent for her son and grandson.