Abstract: Studies was carried out to relations between surose ester and related chemical components in leaf surface of seven different filue-tobacco varieties after pinching off. The results indicated: The amount of sucrose ester in leaf surface of different filue-tobacco varieties was obviously diffferent, and the change of surcose ester contented in different part of leaf surface presented the similar change tendency. Content in NC89 was the highest, then Yunyan85, and G80 was the lowest. And comparing leaf position, it was found that surose ester in leaf surface of different varities presented that upper leaf > middle leaf >lower leaf. And related analysis showed that content of surose ester was quite different in different flue-cured tobacco varieties. And surose ester, solube total sugar, reducing sugar and nicotine had a very significant positive correlation, but had a reverve associatin with non-reducing sugar and potassium.