A method for transmitting data is provided. The method includes: receiving identification information sent by at least one display terminal device; establishing a communication connection with an operating terminal device, and acquiring display content information of the at least one display terminal device from the operating terminal device, the display content information being generated based on target display content of the at least one display terminal device, and the target display content of the at least one display terminal device being determined by the operating terminal device; and sending the display content information to the at least one display terminal device based on the identification information of the at least one display terminal device, such that the at least one display terminal device performs display based on the display content information.