you should provide your previous Chinese passport held and a photocopy of its data page.
If you have obtained Chinese visas before and want to apply for a Chinese visa with a renewed foreign passport that does not contain any Chinese visa, you should present the photocopy of the previous passport's data page and the photo page if it is separate, as well as the previous Chinese visa page. (If your name on the current passport differs from that on the previous one, you must provide an official document of name change.)