Those students who come to China with x-visa should apply their "Alien's Residence Card" within 30 days, after they entered into China, at "Alien's Exit and Entry Administration Office of the Chengdu Municipal Public Security Bureau". The duration of your stay in China will be indicated date of this Card!

Those students who come to China with F-visa should understand that the F-visa is valid for a stay in China of 3 to 6 months from your date of entry. Your F-visa can be renewed several times, but your total time staying in China should not exceed one year. The F-visa allows only one entry into China If you wish to leave and re-enter China (including trips to Hong Kong and Macao) during your period or study, you must apply for a new visa. so the last day of your stay is indicated on your new visa.

Students, holding an X-visa and wishing to leave and re-enter China (including trips to Hong Kong and Macao) during their studies, must apply for a re-entry visa at the Public Security Bureau at least 7 days before you leave. Applying for other visa extension, or renew and extension of your Residence Card. The students should go to there at least 7 days before. With your passport, Residence Card and their duplicates; one piece of your photo and a certificate of the Overseas Student Office.

Anyone who wishes to travel to cities or counties closed to aliens should apply in advance for a travel permit to the Public Security Bureau, otherwise you are not allowed to make a trip.

Attention should be taken quite often to check the expired date indicated on your passport, Residence Card and your visa. Illegal stay will be fined 500 yuan (R.M.B)/per day. All the official documents and I.D. are not allowed to forget, alter, misuse, transfer, buy or sell.
The students are forbidden to write their names on their Green Card by themselves

Those students who come to China With X or F visa should not be employed in China without permission of the competent authorities of the Chinese government. But in some certain cases, if someone apply for it to Overseas Students Office, and an agreement has been made with employer, and permitting paper is issued, and then you may take that job, but to work in the night-club are not allowed. Anyway, try to avoid any influence to your study program.