May I apply for travel visa through travel agency without myself attend to application center?

Yes, you can assign a travel agency or even your friends or families to submit your applications. You should provide your passport, completed application form and a recent passport size photo. Besides, you are required to provide round-trip air ticket booking record or proof of a hotel reservation, etc. or a letter of proof from travel agencies or an Invitation Letter for Tourist issued by a relevant unit or individual in China.