The effect of fertilizer dose on growth, development and yield of two groundnut varieties L14 and TB25 in Autumn growing season was studied in Hoang Hoa, Thanh Hoa. The experiment was replicated three times in a split plot design. The results showed that fertilizer influences on growth, development and yield. Fertilizer influences on duration, branch, leaf area index, dry matter accumulation, number of nodes, number of pods, and grain yield. Optimum fertilizer dose for both two groudnut varieties L14 and TB25 at Hoang Hoa-Thanh Hoa is 30kg N+90kg P2O5+ 60kg K2O/1 ha.