How do I change my ID card when a mainlander marries a Hong Konger?

Applying for a one-way permit at the place of your registered residence will take more than 4 years from the date of application for marriage. After the Ministry of Public Security issues the one-way permit, you can settle in Hong Kong. But you can rest assured that applying to immigrate to Hong Kong is based on a points system, with 0.1 points calculated for every day starting from the date of marriage. In addition, the Ministry of Public Security announced in December 2008 that the approval score for mainland residents' applications to settle in Hong Kong and Macao in 2009 dropped from 182.7 in 2007 to 146.1, which means it takes more than 4 years to qualify. One-way permit issuance time: 0.1 points per day after marriage, as long as the points are enough. The points required in each province will be slightly different, but they are generally around 180 points, and there will not be much difference. So no matter which province, from marriage to It takes four and a half to five years to get a one-way permit. If you can come to Hong Kong to live permanently, you need to apply for a Hong Kong resident identity card. You can find a job in Hong Kong and after living for seven years, you will become a permanent resident of Hong Kong.