By introducing photosensitive chiral molecules into the heliconical cholesteric liquid crystal, a photoresponsive heliconical cholesteric liquid crystal system is designed. Under the synergistic effect of electric field and optical field, the selective reflection of the heliconical structure can be adjusted from visible light to near-infrared region. The tuning range of the reflection spectrum of the heliconical structure is related to the initial helical twisting power of the system. The heliconical cholesteric liquid crystal realizes a broad spectral range (about 580 nm) from visible light to near-infrared region under the modulation of electric field through adjusting the concentration of the chiral photosensitive molecule. Meanwhile, by modulating the power of the non-polarized ultraviolet light field, the tuning range (about 530 nm) of the heliconical cholesteric liquid crystal covering the entire visible light region and the near-infrared region is obtained under a fixed electric field. Such broad spectrum modulated by optical field mainly depends on the thermal effect of optical field and photoisomerization effect of azobenzene. In addition, due to the electric field dependence of the heliconical structure, the optical field modulation interval of the heliconical cholesteric liquid crystal reflection band can be controlled by electric field.