The move appears aimed at supporters of World Uyghur Congress president and former political prisoner Rebiya Kadeer.
The event is meant to 'foster the Chinese nation’s valuable traditions and spread patriotic education' among participants.
Teachers in the Uyghur homeland must demonstrate loyalty to Beijing and to Chinese Communist Party rule.
The Muslim minority group is subjected to added scrutiny, while Han Chinese are allowed to move about unchecked.
'Religious extremism' is seen as a greater danger than the spread of the disease, sources say.
Questionnaire asks children to reveal which relatives pray, what they wear and who has facial hair.
Observers say the legislation is aimed at the further suppression of the Muslim Uyghur minority.
Residents are urged to watch for 'Uyghurs from Xinjiang' and report them to authorities as the city prepares for a major international gathering.