A novel photopolymer sensitized by four photosensitizers is prepared in order to broaden the photosensitive spectrum and increase the recording density and capacity. The holographic recording properties such as diffraction efficiency, exposure sensitivity and the refractive index of the photopolymer are studied. The results show that the maximum diffraction efficiencies reach 61%, 47% and 44%, at three different exposure wavelengths of 632.8 nm,514.5 nm, and 488 nm. The sensitivities reach 1.92×10-3, 9.28×10-4 , and 5.63×10-4. The refractive indexes reach 4.7×10-4, 3.34×10-4 , and 2.93×10-4. Comparing the characteristics of the samples such as diffractive efficiency, exposure sensitivity, refractive index modulation ect., it is found that for performance of the system all the parameters decrease. But the effect on the reconstruction is little. At the same time, the properties of different thickness samples with the same exposure intensity are preliminarily studied. The results show that the broadening photopolymer is propitious to wavelengths multiplexing and sparse-wavelength angle-multiplexing, and all the results provide a reliable test basis.