Good and evil are the universal categories about human emotions by which our theory of ethics is formed.The emotions are divided into two.One is related to feeling experience itself,on which man has built ethics.The other is connected to the nature,on which we are building environment ethics.The emotions about the environment in which human lives are the realistic base on which environment ethics is developed.The rational review of emotions and the cognition of things integrate will,and the will focuses on aims.The wills of human and the aims of things are identical.The ethics tiptop rules are rooted in the order of human.The criterion of environment ethics is originated from the aims which are the inner rules hiding in nature and the various things consisting of nature.