A scheme based on dual-parallel Mach-Zehnder modulator (DPMZM) and stimulate d Brillouin scattering (SBS) effect is proposed to generate millimeter wave signals with a frequency 10times of the radio frequency (RF) signal,which possesses the advantages of wide frequency and high spectral purity.In this sche me,a low frequency RF signal modulates the lightwave by a dual-parallel Mach-Zehnder modulator in which the main modulator and two sub modulators are all biased at the minimum transmission point via adjusting the dc bias to suppress the even-order sidebands.Then the first-order and seventh-order sidebands at the output of d ual-parallel Mach-Zehnder modulator can be suppressed by properly adjusting modulation indices of the sub modulators and phase shift of the phase shifter,so that the third-order and fifth-order sidebands can be ret ained.The third-order sidebands can be filtered out by SBS-assisted filter of stimulated Brillouin scattering effec t,with fifth-order sidebands retained only.And then through beat frequency of the photoelectric detector (PD),millimet er wave signals with a frequency 10times of RF signal can be obtained.Finally,s imulation is performed to verify the feasibility of the scheme.When the frequency of the RF driving signal is 10GHz,the millimeter wave signal with fre quency of 100GHz is achieved.