A kind of wide-band filter based on guided mode resonance effect was proposed. According to the theory of Rayleigh anomalies, the existence of the phenomenon was proved to have the influence to broaden the bandwidth through calculating the position of the Rayleigh wavelength. The spectrums under the conditions of different structural parameters and materials were obtained based on rigious coulped-wave analysis method. The impact of the parameters on transmittance efficiency and bandwidth could be clearly observed and concluded from the theoretical results.The parameters were chosen as the optimum values for obtaining the best trasmission peak and bandwidth. The center wavelength of the transmission spectrum is 632.8 nm, the peak transmission efficiency is nearly 90% and the bandwidth is 95 nm according to the calculation result.This kind of device has potential prospect in the application of display and image.