Yunnan large-leaf tea (Camellia sinensis var.assamica) plays a significant role in the Chinese tea industry, known for its rich organic compounds.Soil is pivotal in tea production, and the composition and diversity of soil microbiota profoundly impact plant growth and soil ecosystem health.This review explores the relationship between the diversity of root microbiota in Yunnan large-leaf tea trees and soil pH levels.It summarizes the key factors influencing microbiota diversity and thoroughly investigates the influence of soil pH on microbial diversity.The research demonstrates a close correlation between microbial diversity and tea yield and quality.Enriched microbial diversity enhances nutrient absorption and disease resistance in plants, consequently boosting tea production and quality.Additionally, microbes play a pivotal role in regulating soil pH.These findings hold crucial significance for optimizing tea production and maintaining soil ecosystem health.