My 2 kids and mom and brother

If they go to China for sightseeing purpose, first, you need to provide filled-out application form affixed with passport-style photos, their passports and its photocopy, round trip air tickets and hotel reservation, the travel plan, bank statement, tax certificate, identity card, as well as other documents the consular officers consider necessary. There is no specific requirement for how much they should have in the bank account, but make sure that they have enough travel fees to cover all expenditure in China.