Communism is not utopia，communism is the inevitable result of logical evolution of the objective law of human society，and communist values are scientific values.The scientific nature of values lies in the loftiness of the value goal，the citizenship of the value orientation，the breadth of the value subject，and the feasibility of value practice.Communism took “people‘s free and comprehensive development” as a value goal，embodying the unity of law and purpose，reflecting the common pursuit of all mankind.Communism regards the fundamental interests of the overwhelming majority of people as a value orientation.It must completely eliminate all exploitation and oppression，and take the interests of the overwhelming majority of people as the point of departure and destination.Communism regards the proletariat and the masses of the working people as the main body of value.It is a worldwide mass movement.Communism has a feasible value practice program，with clear conditions for value，practical methods，and clear practical steps.