Abstract: As a kind of extremely important nuclear imaging technologies,thermal neutron CT imaging technology can carry out Non-destructive testing and Non-destructive evaluating of detected samples.Based on a series of factors that lead to image degradation in the thermal neutron CT imaging process and the discussion of that,we present an integrated processing solution and developed a set of analytical software which investigating the image Pre-processing and post-processing technology based on MATLAB GUI integrated processor.The results of the research show that,the solution can effectively improve the thermal neutron CT images quality.These not only provide reliable guarantee for Non-destructive testing and evaluating,but also provide some reference value for thermal neutron CT imaging technology.