http://www.swissworld.org/en/faq/living_in_switzerland/这个给你参考
The rules on immigration are very strict. Your nationality is important: citizens of the 15 pre-2004 EU member states and of EFTA countries face fewer restrictions than citizens from the rest of the world.
It is almost impossible for non-EU nationals to find work in Switzerland: they need to be highly qualified and able to perform a job that no Swiss person can do. Without a job arranged in advance, you cannot take up residence.