In this study, we used seven data input models derived from Landsat 5 Thematic Mapper (TM), Advanced Land Observation Satellite Phased Array L-band Synthetic Aperture Radar Fine Beam Double Polarization (ALOS PALSAR FBD), and spectral transformations to map mangrove land cover in Kembung river, Bengkalis Island using ob ject based image analysis (OBIA) application. Furthermore, we then test and compare the classification accuracy with commonly used classification algorithm (maximum likelihood).