The soil texture, pH, salinity, organic matter, groundwater level and mineralization degree in Bohai sea coastland in Xinhu village, Dongying city, Shandong province and in Yellow sea coastland in Xuwei salt field, Lianyungang city, Jiangsu province are investigated, measured and analyzed. According to soil physicochemical properties, groundwater lever, and the ability to endure salinity and humidity, different species of seedling to plant in different area in Xuwei salt field is chosen. The result shows that Ziziphus jujuba is more fit to climate, soil and groundwater level in Bohai sea coastland and gain good economic and ecological benefit; Ziziphus jujuba,Amorpha fruticosa,Populus L.,Melia azedarach,Koelreuteria paniculata,Pteroceltis tatarinowii,Eucommia ulmoides,Sophora japonica,Robinia pseudoacacia,Salix matsudana,Albizia julibrissin,Ginkgo biloba are fit to conditions of Xuwei salt field and gain the basic afforestation benefit, but the chosen species of seeding and tree planting technique should be further researched in some area of the salt field.