Abstract：Western mainstream psychology was born of the complex of naturalism.It was unable to resist the temptation of naturalism,of an extrinsic imitation of the model of natural science.It turned out mainstream psychology had excessively imitated physics,simply emphasized empirical research and not noticed the fundamentality of direct and pure description of consciousness. Mainstream psychologists at large presented three tendencies when they did psychological research as a result of naturalism,namely,decomposing,operating and quantifying of psychological phenomena.Psychologists considered consciousness as "nature".Consciousness was equal to the being of nature.It was enslaved to the rule and causality by which the being of nature must obey.One could transfer private mental events into the function among observable physical events.The secret of consciousness could be found out by controlled physical events.In this way,psychology must be faced with the risk of distorting and lacking consciousness.
