To serve the project of National Ocean 863 Plan,the mangrove planting-aquaculture system was made using three mangrove species,namely Sonneratia caseolaris,Ageiceras corniculatum,and Kandelia candel.The status of these three mangrove species' growth and their phenology phase were monitored.Main plant diseases and insect pests of the mangrove were documented.The results showed that mangrove Sonneratia caseolaris grew the fast,all growth criteria of Sonneratia caseolaris were better than the other two,and it also showed stronger resistance to harsh environmental conditions but cold weather.The resistance of Ageiceras corniculatum was strongest and survival rate was the highest.And Kandelia candel grew slowest,it was weakest in terms of resistance and the survival rate was the lowest.The younger mangrove seedlings suffered injury easily from plant diseases and insect pests.Prevention should be carried out so that the mangrove seedlings can develop normally.