Menghai city,lies to the south of Yunnan Province,is one of the tea origins in the world. Its black tea,also known as a Dianhong,has good quality in flavor but tastes a little bit bitter and sour sometimes in traditional processing technolo-gy. Technological innovation involves in tea fermentation mainly could be improved and make a stable quality of the black tea.% 针对勐海红茶中存在的苦涩及泛酸现象，在传统加工工艺的基础上对红茶加工相关工艺环节进行细化改进，并着重在发酵环节进行全自动生产控制，解决勐海红茶发酵全靠人工调控，全凭经验操作，缺乏科学的技术条件和手段，难以稳定和提高产品质量的弊端，通过改进红茶发酵技术，实现提高和稳定滇红茶品质。
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