I am from syria. just now I arrive to turkish. can I get F visa to china for &family?

Kassem, if you want to apply for F type, you need an invitation letter issued by a relevant entity or individual in PRC. Besides, the basic documents including the application form, a recently-taken bareheaded color photo, your passport and its copy, original of work certificate from your company, and the travel itinerary in PRC are required.
But I’m a little bit confused. Are you sure you need an F type? If you come to visit family or for tourism purpose, I think you should apply for a tourist L type.