Dear Sir/Madam I have got a Canadian passport. How can I get visa to china? Thank you .

You are in Iraq now, right? Then you may just apply for a China visa from the China Embassy in Iraq. Do you have residence permit or work visa of Iraq? If not, I'm afraid you are not be able to get a China visa there, and you may change to enter China from Hk and apply for a proper China visa from the visa office of PRC in Hk.