Baoshan people say yes, which means: right, right. Express affirmation of a statement or behavior. Baoshan City is a prefecture-level city under the jurisdiction of Yunnan Province, located in the southwest of Yunnan Province. Yunnan dialect, also known as Yunnan dialect, belongs to southwest mandarin in general. Reclaiming farmland in Ming Dynasty played a decisive role in the formation of Chinese dialects in Yunnan. With the gradual enrichment of people's historical and cultural knowledge, it is finally understood that the formation of Yunnan dialect is closely related to the migration of Han nationality and the formation of today's ethnic pattern. Yunnan dialect is actually a Chinese dialect in the Central Plains in history. Studying these dialects can explain many historical and cultural problems. Unfortunately, most of the recorded materials were lost in previous political movements, and we can only sort out and explain the existing sporadic records to form this article. Because there are many ethnic minorities in Yunnan, dialects in different regions will be different.