NISHI Amane (1829-97) is known as an enlightenment philosopher in Meiji period Japan. He suggested lots of new terminologies, such as 哲学 (philosophy), 主観 (subjective) and 客観 (objective), and introduced European philosophy and logic. Many researchers have so far pointed out that NISHI was influenced by J.S, Mill and Auguste Comte concerning his enlightenment thoughts. But nobody analyzed the connection between NISHI and Hegel.This paper clarifies that NISHI kept a strong interest in Hegel's pantheism until he noticed the importance of utilitarian morals and psychology. Positivism and utilitarianism was resulted from his hard struggle to overcome Hegel's pantheism in order to establish his unique "unified science".We can trace his thinking process in these five texts, 国民気風論, 性法略, 性法説約, 人世三宝説 and 利学. These texts show us that NISHI made efforts to find three treasures (三宝); 健康 (health), 知識 (knowledge) and 富有 (wealth) to teach Japanese people natural laws which were essential for them to catch up with the Europeans. According to the misunderstanding of 性法 and 利 and beside the public image of NISHl as an enlightenment philosopher, we can hardly grasp NISHI's real intention to propose three treasures. Through reexamining the meaning of three treasures (三宝) we can understand how deeply NISHI was influenced by Hegel and how hard he struggled to overcome the European's disdain of Asians.