The invention discloses an AOTF harmonic suppression driver based on the DDS multicarrier technology. The AOTF harmonic suppression driver comprises an FPGA module, a DDS module and a linear power amplifier module, a plurality DDS cores are arranged in the DDS module, one of the DDS cores is a main DDS core and is provided with a main channel, the rest of the DDS cores are auxiliary DDS cores and are provided with auxiliary channels, the main channel and the auxiliary channels separately output frequency point data containing frequency, phase and amplitude information, the frequency, phase and amplitude output by each amplified auxiliary channel corresponds to a certain higher harmonic generated after a fundamental frequency is amplified, and the correspondence indicates that the frequency is the same, the phase difference is 180 degrees, and the amplitude is equivalent; and the auxiliary channels output frequency point data to reduce or counteract the higher harmonics in a radio frequency signal amplified by the linear power amplifier module. The AOTF harmonic suppression driver disclosed by the invention can eliminate or reduce the higher harmonics of the radio frequency signal of the linear power amplifier module, avoid the shortcomings of low efficiency of a power rollback method, is simple in circuit and structure and is easy to implement.