According to a bulletin issued to the airline's cabin crew members, passengers who come on board with the dolls will be classified into two groups.
For those who do not buy extra plane tickets for their dolls, the items will be regarded as a piece of carry-on baggage with a weight of no more than seven kilogrammes.
For those who buy extra seats for their dolls, booking staff are instructed to fill in the name “Child's Angel" in the passenger registration, record who their owners are and how many of the dolls they have with them.
Passengers with the dolls will only be allowed to sit in window seats and wii be served snacks and drinks to the dolls while seatbelts must be fastened for them during take-off and landing.
It said more than 40 passengers had brought their Child's Angel on board over the past two or three months and the guideline was needed for cabin crew staff to deal with them.
Some customers were unhappy when cabin crew members put their dolls in overhead compartments or under the seats, the airline said.
He said the dolls can be put on seats if they are unoccupied, but they must have their seat belts fastened to prevent them from being thrown through the air in the event of turbulence.