Can I apply for immigration after I have returned to China with a New Zealand green card 10 year?

You can't. New Zealand is the only developed country that does not levy capital gains tax, stamp duty and deed tax on real estate transactions. After getting a green card, you can't apply for immigration immediately. You can apply for immigration only after you have lived for two years and one year for more than 183 days. Migration is the general name of population migration activities between different regions. As a noun, it refers to a person or a collection of people (crowd), that is, a collection of floating population; As a gerund, it refers to population migration. Immigration is not necessarily accompanied by nationality change, including short-term population migration and nationality change.