It is impossible to get a permanent Chinese visa even though he get married with you. The Permanent Residence permit is only issued to very few aliens who make great contributions to China, the conditions are very rigour.

In order to qualify for permanent residence status, you must fulfill at least one of the following criteria:

I. Be a high-level foreign expert holding a post which promotes China's economic, scientific and technological development, or social progress.

II. Have made outstanding contributions of special importance to China

III. Have made a large direct investment of over US$ 500,000 in China

IV. Have come to China to be with your family, such as spouse, dependent minors or senior citizens.