The development and innovation of Marxist economics are always accompanied by some unhealthy tendencies. Innovatory Marxist economists are the earliest advocates of China’s reform. Basic approach and overall principle continue to promote the modernization of China’s economics should be “Marxist economics for the core，Western economics for the consultation，Chinese ancient knowledge for the root，World situations for the reference，National situations for the basis，and Comprehensive innovation.” The modernization of China’s Marxist economics shows the five major trends of scientific development.