Habitat changes, soil nutrient redistribution, and corresponding plant growth and nutrient feedback effects under different site conditions have important effects on the cycle of soilplant chemical elements. In this study, we used A. wudanica as the research object to study the stoichiometry characteristics of leaves and roots and its relationship with soil nutrients under different slope conditions. The results showed that: (1) from sunny slope to shady slope, N, C∶P and N∶P in leaves of A. wudanica gradually decreased, soil C content, C∶P and N∶P gradually increased. For soil P content and soil C∶N, there was no significant difference between different aspects. (2) The leaf P content and root system P content, C∶P, N∶P were extremely significantly correlated. There was a significant negative correlation between leaf N content and soil C content, and a significant positive correlation between root P content and soil C and N contents. (3) The contents of C and N in leaves decreased with the increase of soil nutrient content, and the contents of P in leaves and N and P in roots increased with the increase of soil nutrients. The correlation between C content and C∶N in leaves and soil was greater than that in roots. The slope aspect has an important effect on the growth of A. wudanica, and the stoichiometry of A. wudanica is linearly related to soil nutrients. Different slope aspects caused a certain range of fluctuations in the stoichiometry of A. wudanica, but the overall ecological stoichiometry was stable, and the growth of sunny slope A. wudanica was restricted by nitrogen and phosphorus.