The 33-year-old woman and her children were detained in Turkey this week after they went missing from their London home.
The woman refused to stand Saturday when the judge entered, saying she preferred to sit down for religious reasons. She indicated she would plead not guilty.
Police say she took four children under the age of 16 out of Britain without the proper consent.
The woman's father, husband and two sisters were in the court for the brief hearing. She told them not to cry and blew them a kiss.