Abstract: The paper deals with propagule collection,seedling nursery and afforestation technique of Aegiceras corniculatum .The best season for propagule collection in Hainan,Liangjiang and Shenzhen is in the middle ten days, the last ten days of August and the first ten days of September respectively. The survival rate of seedlings is the spot sowing of promoting sprout was 80.0% higher than that in the directing spot sowing. Substrate I was the best one among substrates in the container. The survival rate can reach to 100% for transplanting with small and big shrubs. The mudflat height suitable for growing trees must be first selected carefully,because the growth of seedlings and young trees is greatly affected by the tide.The mudflat height suitable to planting is above 1.42 m of the tide datum plane,and the soil must be relatively hard. The space of initial plantation should be 0.5 m×1.0 m or 1.0 m×1.0 m. A.corniculatum have a high tolerance of tide inundation and can normally grow under the staying inundation of sea water for several years.