you should apply F visa will can be issued to aliens who come to China for study for less than 6 months, if you have the documents that entitle you to reside for an extended period of time in the Singapore, such as a PR, WP, EP, STP, DP, you can apply for Chinese f visa in Singapore, do you have obtained the An original Visa Notification Form issued by Chinese authorized unit and An original admission notice from the Chinese school is required?