Abstract: For the sake of clarifying ecological restoration results at different mangrove sites, Shenzhen Bay coastal mangrove restoration project was taken and studied. Three standard layers of plant growing-status, the completion of the repairment and sediment environment quality were selected. The unrestored area and the barren tidal flats were used as controls to analyze the community structure characteristics of restored mangrove and environmental quality with site conditions such as strong wind and wave beach, low tide beach and gravel beach. Based on the analytic hierarchy process (AHP), a comprehensive evaluation of its repair effect was carried out. Results show that firstly the preservation rates of mangrove plants on strong wind and wave beach and low tide beach were significantly higher than that on gravel beach, and these three rates were all above 60% after repairing for 3 years. Secondly the increased contents of TOM, TP, DIN and NO^-₃N in sediments indicated that mangrove restoration had an improvement effect on the quality of sediments. Thirdly the restoration effects at mangrove sites in Shenzhen Bay could be evaluated as gravel beach(3.754) less than low tide beach(4.397) and less than strong wind and wave beach(4.895). In conclusion, the results of mangrove restoration project in Shenzhen Bay are excellent.