Abstract: Being agreeable to some basic ideas in the paper "A discussion on the basic theory of site classification in China", some comments are put forward:1. It is indicated that the review of research activities in the field of site classification in China is not fully presented. The research effort which should be unique, suitable to the national specific conditions, must be based on thorough studies of the world experiences in the same field and their broad utilization.2. It is considered that the afforestation division is not subordinate to the natural division, but a part of forestry division as a sectional economic division. It is recommended that the achievements of the forestry division can directly be used as the base of site. classification.3. It is considered that the rules presented in the paper to divide the site type group according to their topographic factors and to divide site types according to their soil factors are not acceptable in all conditions. It is indicated that the minor differences within a site type are also the objects of study.4. It is necessary to study the basic theory of site classification, but it must be done with more abundant contents and deepgoing exploration.