Sciences Po Saint-Germain welcomes students of all nationalities in its degrees. Entrance is possible either as an undergraduate or in a Master degree. 

Depending on your nationality, your residence country, your high-school diploma and the level of studies you want to join, the application process to a French  institution of higher education will differ.

Therefore, your first step is to register on the appropriate official French platform; all the information about this can be found on Campus France :