In this paper, an underwater image restoration method based on non-uniform incident light imaging model is proposed to solve the problems of blurring, low contrast, and color distortion of underwater images. Through wavelet decomposition, we can suppress the scattering light in the lowest frequency subband while reducing the noise and enhancing the details in high-frequency subbands. The contrast deviation and the color deviation caused by underwater non-uniform incident light can be corrected by dynamic range stretching and histogram matching. The experimental results show that the proposed method can restore images with high definition, balanced contrast, and natural colors. The average of the underwater color image quality evaluation (UCIQE) index is 0.6240, which is superior to that of the algorithms reported in the references.