What conditions do Han people need to change to Hui people?

Legal analysis: go to the local ethnic affairs office to issue a certificate, and go to the household registration section of the public security bureau where the household registration is located to change the ethnic composition.

Legal basis: Administrative Measures for the Registration of Ethnic Composition of Citizens in China.

Article 7 The ethnic composition of citizens shall generally not be changed after confirmation and registration.

Citizens under the age of eighteen, their legal guardians may apply for changing the ethnic composition once in the following circumstances.

(a) citizens under the age of 18, whose parents' marital relationship has changed, and whose ethnic composition is different from that of the party with custody;

(two) citizens under the age of eighteen, whose ethnic composition is different from that of their adoptive parents or stepfathers.

Citizens who have reached the age of 18 can voluntarily choose the ethnic composition of their father or mother once within two years after reaching the age of 18.

Eighth citizens under the age of eighteen who want to change their ethnic composition shall apply by their parents or other legal guardians; A citizen who has reached the age of 18 and applies for changing the ethnic composition shall apply by himself.