Where can I down load application form for China Visa?

You can download China visa application form from this site: https://www.travelchinaguide.com/embassy/pdf/visa-application.pdf
Please be note that the form should be completely filled. You can either type answers or print it first and fill by hand.
Requirements are your passport as well as copy of its information page, application form attached with one passport-sized photo. If you travel with a tour, better prepare a travel itinerary from the travel agency.