Yes, it is mandatory to buy a student insurance before your arrival in France (by bank transfer) if you are a non-European student.
The insurance you bought in your country is not valid in France and you have to take one in France, except if you do have an international insurance that covers you in France
We suggest you to take a short-term insurance for your visa purposes as you’ll have to take another one in France when you are here.
We will help you get one of the following student health insurance plans:
If you are a European student, you have to bring the EHIC (European Health Insurance Card) card with you. The EHIC card must cover at least the period of your exchange programme in France.