The invention belongs to the technical field of data packet generation, and in particular relates to a data packet generation method, a data packet generation device and a computer-readable storage medium. The method comprises the steps of: receiving target values and masks of target bytes, where various key fields are, in the header of a data packet to be generated, and an interval value betweenany two adjacent target bytes; for each target byte, adding the target value to the bit corresponding to the first pre-set value in the mask in the target byte, and adding second pre-set value covering to the bit corresponding to the second pre-set value in the mask in the target byte, so that a target byte value is obtained; generating a header content corresponding to the target protocol type according to multiple target byte values and a covering character string determined according to the interval value; and encapsulating the header content and the pre-set data fields, so that the data packet to be generated is obtained. By means of the data packet generation method, the data packet generation device and the computer-readable storage medium disclosed by the invention, the data packetgeneration process efficiency can be increased.