As early as the 1991s, Yang's grandmother set up a small powder stall in the street market in Bailutang Town. The original pig-killing powder was also called Sam Sun Powder. Every morning at the street corner of Bailutang Town, there were always many diners complaining about powder before the stall. Over time, the small powder stall became famous. In the conversation with Yang Apo, the regular customers mentioned that the ingredients and taste of this bowl of Sam Sun Powder are similar to those of other places, and suggested that it be renamed as "Kill Pig Powder". Yang Po thought the name was resounding and officially changed its name. When it came to Yang Apo's son's generation, the trademark "Bailutang killing pig powder" was created, and Bailutang killing pig powder became famous. The training of killing pig powder can be learned in the catering training institutions in southern Hunan, Chenzhou. According to the relevant information, Xiangnan Shiweitian Catering Training Center is a training institution focusing on local specialties in Hunan, mainly training, special breakfast noodles, authentic Qifengdu fish meal, Chenzhou killing pig powder, Guilin halogen powder, Liuzhou snail powder and so on.