A linearization method based on dual-wavelength dual-parallel modulation is proposed to enhance the dynamic range of microwave photonic link. The exacerbation of spurious-free dynamic range of linearized link due to the drift of the optical power of lasers is simulated. The simulation results show that this linearization method can be performed by using commercially available devices. Furthermore, the performances of a single-Mach-Zehnder modulator (MZM) intrinsic link and a dual-wavelength dual parallel modulation linearized link are compared in the experiment. The measurement results show that 1.5 dB enhancement of compression dynamic range and 15.6 dB of improvement spurious-free dynamic range are achieved after linearization. The spurious-free dynamic range of linearized link is up to 122.5 dB · Hz4/5. In a word, this linearization method is a good alternative for improving the dynamic range of optical links.