I have an Italian residence card. Do you still have my account in China? Is the ID card still useful?

Having a residence card only means that you have permanent residence in Italy, so congratulations, you have become an overseas Chinese. But you are not naturalized, that is, you are still a citizen of China, just a citizen of China living abroad. Because your ID card in China is valid. According to the regulations, your account in China will be cancelled, but as long as you don't do it, you will still keep it. So you are free to go back to China and marry your girlfriend according to the law.

However, I want to remind you that, according to the regulations, you have lived abroad, so you should go to the China Embassy to fill out the China passport.