This paper, with the survey data on quality control of 76 tea production enterprises with geographic marks in Huangshan city and binary Logistic regression model, analyzes the measures taken by the enterprises to improe quality control from such four aspects as the enterprises themselves, the government regulatory conditions, the relationship between the enterprises and upstream and downstream of the supply chain andenterprises' cost and profits. Results show that government penalties, raw material controlling, target market and the cost and profits are four factors that affect the quality improvement of tea enterprises with geographic marks.