Several tailings earthen dams have failed during past earthquakes. Due to the failure of tailings dam, the stored tailings waste releases into the surrounding locality causing a disaster for mankind. To reduce such phenomenon, both static and seismic analyses should be conducted for tailings earthen dam. In this paper the static and seismic slope stability analyses are presented for a typical section of 28 m high tailings earthen dam constructed by the downstream method in two phases. The analyses are performed using geotechnical software TALREN 4. Both 1st and 2nd phase of tailing earthen dams are analyzed for different upstream conditions of reservoir like empty, partially filled up and fully filled up cases with compacted and non-compacted dumped waste materials in both slurry and clean water conditions. Seismic analyses are performed using different input seismic motions considering both horizontal and vertical seismic accelerations.