The invention discloses a data transmission method and equipment and is used for solving the problem that in the prior art, the training time cost of a TRP (Transmit and Receive Point) and UE (User Equipment) is high, the initial access delay is high and the spectral efficiency of a system is high within a data transmission process. The method comprises the steps that a base station sends the first set number of wide beams to the user equipment for beam training, wherein each wide beam comprises the second set number of narrow beams, and the beam training is used for the user equipment to determine receiving quality values of the first set number of wide beams; and the base station receives a serial number of the optimum narrow beam sent by the user equipment.