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Sea level spatio temporal variability in Indonesian waters is an important oceanographic aspect to be investigated. This is related to the use of satellite altimetry data in physical geodesy studies in the region. Due to its location at the equatorial zone and as an archipelagic region, Indonesian waters should experience complex behavior and pattern in term of sea level. Identification and analysis of those phenomena require precise sea level observation over a long period of observation. Topex, Jason 1, Jason 2, and Jason 3 satellite altimetry missions have been observing sea level for more than two decades. In this research, the use of these altimetry data from 1992 to 2019 in identifying and analyzing the long term sea level variability in Indonesian waters will be investigated.