How I process visa ? Please help me!

You can apply for it from the Italian embassy in Beijing. You need to prepare these documents: your passport (valid for at least three months after visa expiry date), completed application form, recent passport size photo, return-trip air ticket, hotel booking order in Italy, proof of economic means of support and health insurance policy with a minimum coverage of €30,000 for emergency hospital and repatriation expenses.

Besides, you have to provide yor Chinese resident permit when submitting your application.