Regarding the relationship between knowledge of jurisprudence and ethics, there is a difference between scholars of jurisprudence and ethics. Examining the relationship between jurisprudence and ethics and the possibility of establishing the knowledge of jurisprudence and ethics is very important in the growth and excellence of this science. This article aims to express the relationship between jurisprudence and ethics and the possibility of establishing moral jurisprudence with descriptive-analytical method. In order to achieve this goal, the comparison and examination of the similarities and differences between the main elements of the two sciences of jurisprudence and ethics has been done. Also, the interaction and mutual effects of the two knowledges have been investigated by correlation analysis of jurisprudence and ethics. The findings of the article show that in jurisprudence and ethics, the subject of these two have a general and specific ratio, and in the predicate, goal and method, the ratio of the two is equal. In the relationship analysis of jurisprudence and ethics, the impact of jurisprudence on ethics is investigated in issues, research methods, and the goals of ethics, and in the impact of ethics on jurisprudence, making the bases of rulings, adjusting jurisprudence rulings, moral analysis of issues and expanding the scope of jurisprudence is investigated. According to what was stated in ratiometric and relational measurement, there is a possibility of moral jurisprudence and two general and specific definitions have been considered for it. There is. As a result, according to this definition, in the jurisprudence