How can the mainland live in Hong Kong for a long time?

If you are a resident of Chinese mainland and want to live in Hong Kong for a long time, you need to meet the following conditions: 1. Obtain a valid visa or the right of abode in Hong Kong. 2. Obtain a work visa or a family reunion visa approved by the Hong Kong Government. 3. Hold valid travel documents and entry permits (such as passports). 4. Access to legal work, housing and medical insurance. 5. No criminal record or record of being refused entry by the Hong Kong government. 6. After living in Hong Kong for a certain period of time (usually seven years), you can apply for permanent residency or citizenship. It should be noted that due to the differences in immigration policies and legal systems between Hong Kong and China, living and working in Hong Kong need to abide by the laws and regulations of Hong Kong. In addition, the residence conditions and application process in Hong Kong may change at any time, so please consult the relevant departments of the local government for the latest situation.