I want to know how to get a Hong Kong identity card (entry). I want to go abroad.

Fake marriage is illegal and criminal. If convicted, the maximum penalty is 7 years imprisonment and a fine.

Provisions on false marriage statements in the Crimes Ordinance, laws of Hong Kong. Statement,

Anyone—

(a) knowingly and intentionally makes a false oath, or makes or signs a false declaration, notice or certificate for the purpose of promoting marriage or obtaining a certificate or permit relating to marriage, which is required by any enactment relating to marriage for the time being in force; or

(b) knowingly and intentionally makes or causes to be made a false statement about marriage details which are required by law to be published and registered in the marriage register; or

(c) Making a false statement knowing that the law requires consent for marriage, so as not to issue a marriage certificate or permit; or

(d) For the purpose of registering customary marriages or approving marriages under section 9 of the Marriage Reform Ordinance (Chapter 13 1). 178), or related to such registration, knowingly and intentionally-

(i) makes a false statement in the application; or

(ii) providing false information, (Added 0970 s. 2)

Commits an offence and is liable on conviction on indictment to imprisonment for 7 years and a fine.

In addition, it is reported that "the cases of mainland residents defrauding the right of abode in Hong Kong through fake marriages have been repeatedly banned, and new phenomena have emerged in recent years. The Immigration Department pointed out that the trend of mainland men coming to Hong Kong through fake marriages has increased in recent years. The Immigration Department has set up a task force to crack down on fake marriages, and is currently focusing on investigating 50 cases of suspected fake marriages. An intermediary specializing in illegal activities of arranging fake marriages said that fake marriages have become an alternative "investment immigrant" for some mainland professionals in recent years. Some mainland married people are willing to divorce after obtaining the right of abode in Hong Kong through fake marriages, and arrange for their young sons from the mainland to come to Hong Kong. 」

Another report said: "A Hong Kong woman was sentenced to community service for a fake marriage-Xu Yingshan, a 25-year-old Hong Kong woman, was sentenced to a community service order 160 hours at Sha Tin Magistracy today for conspiring with mainland men ... (The Immigration Department reiterated that it is very concerned about the situation in which non-Hong Kong residents cheat Hong Kong residents to stay in Hong Kong through fake marriages, and has set up a task force to collect information from different sources. If sufficient evidence is obtained, those involved will be prosecuted. 」

So "fake marriage" is illegal.