Abstract: In order to investigate the effects of compound intercropping on soil improvement of coastal saline, woody plants (Elaeagnus angustifolia L. and Pyrus betulaefolia Bge.) and herbaceous plants (Carthamus tinctorius L. and Trigonella foenum-graecum L.) were used as experimental materials, and four intercropping planting treatments (T1, T2, T3 and T4) were designed. The contents of hydrolyzable nitrogen, rapidly available phosphorous, rapidly available potassium and organic matter were measured according to relative national standards. The results showed that: the four treatments could increase the contents of nutrition and organic matter in 0-10 cm, 10-30 cm and 30-50 cm soil layers, respectively, but different treatments had different effects on the increasing percentages of nutrition and organic matter. In three soil layers of 0-10 cm, 10-30 cm and 30-50 cm, the intercropping planting treatments which had the most high increasing percentage for hydrolyzable nitrogen content were T2 (92.1%), T2 (199.8%) and T2 (370.5%), for rapidly available phosphorous were T4 (69.1%), T1 (558.9%) and T1 (245.7%), for rapidly available potassium were T1 (144.9%), T2 (119.5%) and T1 (132.0%), for organic matter were T2 (82.5%), T2 (212.3%) and T1 (180.6%). According to comprehensive analysis, T1 and T2 treatments had better effects than others on soil improvement of coastal saline, and could be effective modes in the improvement of coastal saline soil.