Abstract: A field test was carried out to study the proper proportion of nitrogen, phosphorus and potassium in okra. Orthogonal experiment design with four levels and three factors was used to study the impact on the growth and the number of podding in okra during the spring and autumn by different fertilizer proportion of N, P, K fertilizer. It showed that: the plant height had significant differences among the all treatments during spring planting and fall planting. The largest plant height was 62.3, 125.0, 169.0 cm respectively in spring planting 30, 60, 90 d, and 36.14, 107.8, 118.9 cm respectively in autumn planting 30, 60, 90 d. The contribution rate of every experiment factor was determined by means of range analysis. It showed that phosphate was the main factor in spring-planting growth, and nitrogen was the main factor in autumn-planting. The best combination was N2P4K2 (N 0.155 kg/plot, P2O5 0.159 kg/plot, K2O 0.214 kg/plot) for spring-planting okra growth, and N4P4K3 (N 0.104 kg/plot, P2O5 0.159 kg/plot, K2O 0.178 kg/plot) was the best combination for autumn-planting. The most important factor of okra podding was phosphate fertilizer in spring-planting and autumn-planting, next was nitrogen. The best combination was N3P2K2 (N 0.130 kg/plot, P2O5 0.238 kg/plot, K2O 0.214 kg/plot) for okra podding. It showed increase in the amount of phosphate and potash, and lower nitrogen appropriate could improve okra podding.