A method of generating broadband supercontinuum pulses is proposed, and it is a prefer light source for coherent Raman spectroscopy.A 1 064 nm femtosecond laser was used to pump the normal dispersion photonic crystal fiber, and then a pair of gratings was used to compress the pulse. Then a supercontinuum light source with a pulse width of 178 fs and a spectral range of 760~1 300 nm was obtained.The temporary spectrum structure of the supercontinuum pulse was analyzed. The results demonstrated that its spectrum is basically linearly and smoothly distributed, but the pulse width reaches 1.43 ps, and the time delay between different spectral frequencies is quite large. Therefore, a pair of gratings is used for dispersion compensation. In addition, although increasing the power of pump light can increase the spectral broadening, it will also introduce higher-order dispersion, which will increase complexities to the following dispersion compensation. In the end, to verify the performance of the supercontinuum in Coherent Anti-stokes Raman Scattering (CARS), three-color CARS spectrum detection system was built using the supercontinuum, and the CARS spectrum of the benzonitrile solution was measured, and all vibration modes in the range of 3 200 cm^-1 was obtained simultaneously.