The present invention provides a data transmission method, apparatus and device, and a base station, and relates to the field of communications technologies. The method of the present invention includes: receiving data sent by a radio unit; acquiring a standard identity of the data, where the standard identity is used to identify a standard type of the data; routing the data according to the standard identity of the data; and sending the routed data to a digital unit corresponding to the standard identity of the routed data.