How can i get china visa for traveling in train from china to russia?

If you go to PRC for tourism purpose, you first need to prepare the required documents including your passport and copy of its data page, the completed application form attached with a passport-sized color photo taken recently, your valid entry permit to South Korea, as well as round trip tickets and accommodation booking record, and other documents the consular officers consider necessary. Next, submit your application to the CVASC to apply for it.