Disclosed is a service transmission method, comprising: receiving a service request sent by a user equipment; acquiring an air interface delay tolerance corresponding to the service request; selecting, according to the acquired air interface delay tolerance, a target transmission mode for transmitting the service for a service indicated by the service request; and allocating a transmission resource to the user equipment according to the selected target transmission mode, so that the user equipment performs service transmission according to the target transmission mode and the transmission resource. Further disclosed is a service transmission apparatus. By means of the embodiments of the present invention, a service transmission mode can be selected according to an air interface delay tolerance, so that a time delay requirement of a short time delay service can be satisfied.