You can apply for Business Visa (F visa) of China which can be issued to aliens coming to China for attending conference, the following documents are required:
(i) Original passport with at least two blank visa pages. For single entry visa, your passport should be valid at least 6 months; For double-entry or multiple-entry(six-month) visas, your passport should be valid at least 9 months; For one year multiple-entry visa, your passport should be valid at least 15 months;

(ii) One completed Visa Application Form (e-Form / Download) with a recently-taken passport photo stuck on it; all the items on the application form should be completed neatly with genuine information;

(iii)a visa notification issued by the authorized Chinese unit(Chinese governmental departments, companies and organizations authorized by the Ministry of Foreign Affairs. If you need more information, please contact the foreign affairs office of the local government).

(iv)invitation letter from the organizor of the conference

(v)An applicant holding a non-Australian passport should provide the photocopy of his or her valid Australian visa and entry stamp. An applicant holding an e-visa or who comes from the visa-exemption country should provide the legal residence card in Australia if necessary.