Optical thin-film filters for multispectral palmprint image acquisition systems were designed. According to the different reflectance characteristics of palm skin in visible and near-infrared bands, we analyzed the spectral characteristic parameters and film design of palmprint recognition filters. For better quality of palmprint images obtained by the systems, a four-channel filter design scheme was adopted. The spectral characteristic parameters are required as follows: the central wavelengths λ₁=470 nm, λ₂=520 nm, λ₃=630 nm, and λ₄=880 nm. The full width at half maximum of each channel is 10 nm. The transmittance is higher than 90%, and the average cut-off background depth is greater than OD6 (spectral transmittance is less than 10 ^-6).