Abstract: Based on Landsat 5, Landsat 7 and Landsat 8 multi temporal satellite remote sensing images, this paper extracts mangrove information by using the combination of support vector machine and expert interpretation, statistically analyzes the mangrove area and morphological changes in recent 11 years (2010－2020), and evaluates Matang mangrove by using land use transfer matrix and landscape pattern index. The results show that: In recent 11 years, the area of Matang mangrove has shown a tortuous trend of increase and decrease. By 2020, the area of Matang mangrove will be 396.59 km², with an overall increase of 19.41 km² from 2010 to 2020. From 2011 to 2020, the area of Matang mangrove will increase the most, with an annual growth rate of 31.56 km²/a. From 2011 to 2020, the decrease of Matang mangrove is mainly due to pond culture and land crop planting, and the increase is mainly due to the natural recovery and artificial planting of mangrove. The patch fragmentation of Matang mangrove has increased slightly in recent 11 years. The human disturbance to mangrove is the strongest from 2011 to 2015. The shape of mangrove patch tends to be complex in recent 11 years, but the aggregation degree of mangrove patch is very high. The results can provide a theoretical basis for the decision-making of the management department of Matang Mangrove Reserve in Malaysia.