Zhang Qing's wife in Chapter 17 of Water Margin.

Sun Erniang is an important figure in Water Margin, known as "the first coquettish in Liangshan". In the water margin, she is Zhang Qing's wife, alias Dunzhuang Xingmuha. Mengzhou Road Cross Slope and Zhangqingkai Hotel sell human flesh. Song Wu was sent to Mengzhou, passing through Hengpo, and was killed by Sun Erniang. Song Wu pretended to be drunk and caught Sun Erniang and Zhang Qing begging for mercy. Song Wu met Zhang Qing and Sun Erniang, and Sun Erniang later followed Zhang Qing to Liangshan, presided over the Xishan Hotel in the Water Margin, and was welcomed and sent to Liangshan, the 3rd hero in 103. Sung River conquered Fang La and Sun Erniang was killed.