In addition to a valid passport wearing, except for exempted nationals, a visa, every foreigner should be in a position to produce to the immigration officer when entering France the following documents:
-proof of the purpose of her stay in France ( for tourism: hotel reservation, letter from a tour operator,...; for a professional visit: letter from the employer, invitation from a French firm or organization...; for a family or private visite: "attestation d'accueil" delivered by the town hall of your host...)旅馆预订单或者接待证明
-proof of your means of living: cash; traveller's cheques, international valid credit card...现金,旅行支票或者信用卡
-proof of medical insurance covering doctor and/or hospital fees, social assistance and repatriation;旅行健康保险
-guaranties of leaving France (return ticket,...)返程机票
NB: a Schengen visa does not allow entrance into a French overseas territory unless the visa mentions in its remarks the name of this particular territory.