In response to issues related to the forming and defining of soil group and subgroup, differentiae and names of soil genus and species, and the list sequence of soil taxa at all levels in the Interim Soil Classification System for the Third National Soil Survey (on Trial), following suggestions are proposed: based on the Interim Soil Classification System for the Third National Soil Survey (on Trial), cancel the Podzolic Dark-brown Earths, change the name of “Podzolic Gray Brown Coniferous Forest Soils (Bleached Podzolic Brown Coniferous Forest Soils)” to “Bleached Podzolic Brown Coniferous Forest Soils”, and add the soil group of Bleached Podzolic Soils, and the subgroups of Typical Bleached Podzolic Soils and Dark Bleached Podzolic Soils. According to a logical order, the differentiae components and their classes to distinguish and name soil genus and soil species should be listed as comprehensively as possible. The names of differentiae components and their classes should be further standardized and briefly explained. The naming method of some soil genus should be further explained in detail. The differentiae components of each soil species should be determined according to the actual situation. When naming the soil species consecutively, corresponding standardized classes names of the differentiae components should be used continuously according to the selected differentiae components. Finally, the name of soil genus should be connected to the lasted class name of the differentiae component to avoid confusion among relevant personnel in distinguishing higher-level soil categories. The simple name of soil species can be abbreviated with an address to avoid having the same name in different soil types. In the table of soil classification system, the list sequence of higher categories should be consistent with the Interim Soil Classification System for the Third National Soil Census (on Trial), except for adding Bleached Podzolic Soils and its subgroup before Podzolic Soils, the newly established Hortisols and its subgroup after the Irrigated Desert Soils in Irrigated Soils order, and the Technosols suborder and its group and subgroup after the Irrigated Soils suborder. However, the soil genus and soil species should be listed in the sequence of the proposed differentiae components and their classes to avoid multiple occurrences of soil genus and species with the same name in the same table of classification system.