The basic goal of government's institutional behavior lies in admiting, respecting and protecting the legitimate interests of each subject in the economic activities of market, and maintaining the order of market economic operation.Unfair institutional ethics and ethicalspirits reflected by institution which violate the rational purposes of social morals,is one important reason that causes the economic order in present stage to be in disorder. Solving the moral problems of government's institutional behavior in economic operation fundamentally,essential ethical spirits should be implemented in government's institutional behavior, making government's institutional behavior reflect socialist moral principles and meet the requirement fully. Defining the ethical principles of government's institutional behavior,and setting up and standardizing moral ensure system of government's institutional behavior are helpful in restricting immoral phenomenon in government's institutional behavior from external.