茶叶是我国一种重要的出口商品。商品茶按其原料老嫩、外形、内质优次分为若干等级。茶叶等级标准的进一步科学化、规格化,是外贸、商检、商业、及生产部门急待解决的课题,茶叶容重是商品茶物理性状的重要内容,早在50年代末,上海商品检验局为适应定量包装盒的设计,曾对外销珍眉容重做过测定,1972年安徽农学院茶业系、浙江农业大学茶叶系,都对本省毛茶收购标准样和生产样的容重进行测试,取得了初步效果;某些茶叶收购部门,曾用容重测定来作为评定茶叶等级的一个依据。前人的研究,仅停留在对结果的单纯总结上,没有对数据进行处理分析方法分析,本文为研究制定用科学手段计测等级标准、建立茶叶等级数学模型,研究茶叶容重与茶叶等级相关性,对茶叶等级的标准化有 Tea is an important export commodity in our country. Commodity tea by its raw tender, appearance, quality is divided into several grades. The further standardization and standardization of tea standards is an urgent issue for foreign trade, commodity inspection, commerce and production departments. The weight of tea is an important part of the physical properties of commercial tea. As early as the late 1950s, Shanghai Commodity Inspection Bureau Quantitative packaging design, export volume has been done Zhen Mei measured, in 1972 Anhui Agricultural College Department of tea, Zhejiang Agricultural University, Department of tea, the provincial Mao Mao acquisition of standard and production-like bulk density test, and achieved initial results ; Some tea purchasing department, had used the determination of bulk density as a basis for the assessment of tea grade. The predecessor’s research, only stay in the summary of the results, there is no analysis of the data processing methods, this paper to study and formulate scientific methods to measure grade standards, the establishment of tea grade mathematical model to study tea weight and tea grade correlation There is standardization of tea grade