For the advantage of simple structure and good anti-aliasing, cascaded integrator comb (CIC) filter has been widely used in a variety of signal processing systems. Aiming at the problem of large passband distortion and small stopband attenuation of the traditional CIC filter, a Chebyshev cascade integral comb (C-CIC) filter is proposed by analyzing the characteristics of CIC filter. The simulation results using MatLab show that compared with the traditional CIC, interpolated second-order polynomial cascade integral comb filter (ISOP-CIC) and cosine integral comb filter (CIC-COSINE), the C-CIC filter has a large improvement in passband distortion at frequency fc and stopband attenuation at frequency fa when the number of CIC cascades is the same. According to the Quartus simulation, design tool of FPGA, the C-CIC filter consumes less on-chip resources than the ISOP-CIC and CIC-COSINE filters when the same amplitude-frequency characteristics are achieved. It is indicated that the C-CIC filter can be better used in tunable diode laser absorption spectrometer (TDLAS) system.