The development from pedodiversity to geodiversity conforms to the trend of soil geography research. Henan Province was selected for applying modified Shannon entropy equation to the geomorphic types as the main geological factor added to the soils in the study of diversity. Multi-class geomorphic spatial diversity and its correlation with soil diversity were discussed. Firstly, the 1:17 50000 landscape type map was vectorized to get the geomorphic type system of Henan Province. Then, geomorphic and soil composition diversity and bifurcation rations(BR) are calculated for soil and geomorphic classification systems. Lastly, the correlation between geomorphic diversity and pedodiversity at a resolution of 1 km ×1 km is discussed . Results showed that the richness of 1st , 2nd and 3rd level landform are numbered from 3, 12 to 37. As soil and geomorphic classification levels are getting finer and the classification number and form composition diversity values are accordingly on the rise trend. That is to say, soil and geomorphic tyeps are both growing higher either in richness number or diversity values. Soil classification is a more detailed classification system than geomorphic classification system with its larger range change of the bifurcation rations. The largest spatial distribution and area of 1st level landform are water flowing plain , 2nd level landform alluvial and 3rd level landform flood plain, dominating types respectively to the different levels. Between 1st level landform and soil group, soil subgroup and soil family there exists the closest tie while the correlation between landform water flowing plain and diversity of soil group is the strongest.