Using the mutually coherent function, the influence of Compton scattering on self-trapping of the circlar partially coherent optical beam is studied in the total internal reflective photonic crystal (TIRPC). The result shows that the composition of the non-coherent optical beam in the optical spectrum and diffraction effect are decreased by Compton scattering, and the probability forming the soliton is raised. The vibration peak value of the soliton, compressed degree, variation cycle, and radius are less than those before the scattering, and the coherent radius is larger than that before the scattering. The self-focusing plays an important role in the optical beam propagation.