As early as the 1990s, Grandma Yang set up a small powder stall in the road market in Bailutang Town. The original killing pig powder was also called Sanxian powder. Every morning at the street corner of Bailutang Town, there are always many diners chattering in front of the stall. Over time, Xiao Fentan became famous. In the conversation with Yang Apo, regular customers mentioned that the ingredients and taste of this bowl of Sanxian powder are similar to those in other places, and suggested that it be renamed as "killing pig powder". Yang Po felt that her name was loud and she officially changed her name. In the generation of Yang Apo's son, the trademark "Bailutang killing pig powder" was created, and Bailutang killing pig powder became famous. The training of killing pig powder can be studied in the catering training institutions in southern Hunan, Chenzhou. According to relevant data, Xiangnan Food and Beverage Training Center is a training institution focusing on Hunan local specialties, which mainly trains special breakfast noodles, authentic Du Qifeng fish meal, Chenzhou pig killing powder, Guilin marinated powder, Liuzhou snail powder and so on.