http://au.china-embassy.org/eng/ls/t286322.htm
(3)Applicants who apply for tourist visa should provide tour itinerary, including flight and hotel booking. If you are going to China for visiting family, relative or friends, you should submit a letter of invitation and a copy of inviter's ID.
(5)Applicants, who have been granted Chinese visa before, should provide copies of recent Chinese visa with entry record. In case they are not on the current passport, copies of the previous passport with the above data are required.
(6) Foreign nationals who once held Chinese nationality apply for Chinese visa for the first time, should submit the former Chinese passport (the Embassy will cancel its validity), HK/Macau SAR passport, Taiwan travel document.