The founder of hot and sour soup surnamed Chen is not surnamed Ma, the reason why it is called hot and sour soup is because Chen Apo has a pockmark on her face, so she is called Chen Mapo. Hot and sour soup was founded in the Qing Dynasty. At the Wanfu Bridge in Chengdu, there is a store called “Chen Xingsheng Rice Shop”. The shop owner is early, the small hotel is run by the proprietress, and the female boss has a pockmark on his face, which is called ”Chen Ma Po”.