Can a civil servant's wife settle in Hong Kong?

Settlement in Hong Kong and permanent residents in Hong Kong are two different things.

Hong Kong permanent resident, 1) is a family reunion, and 2) invests100000 yuan to apply for immigration to Hong Kong with a foreign passport. These two, as the wives of a civil servant in China, can meet their own requirements.

As for settlement, yes, you can hold a China passport or pass and never go back after you come to Hong Kong. You will not be found to have the ability to settle in Hong Kong and spend the rest of your life.