在当代西方经济伦理学的发展中出现了道德推理多元化的新现象。就层次看,有原理多元化、实践多元化和个体多元化;就程度而言,有激进的多元论和温和的多元论;就合理性而言,则是原理多元化较为可取。人们运用于经济伦理的道德推理的原理主要有后果论、非后果论,以及结合了后果论和非后果论的综合社会契约论、规范性原则等。原理多元化与综合化是一个过程的两个侧面,与道德相对主义有一定联系,但不能归结为道德相对主义,而是民主社会长期存在的经济伦理现象。 In the development of contemporary western economic ethics, a new phenomenon of diversification of moral reasoning appeared. As far as the hierarchy is concerned, there are principles of pluralism, pluralism of practice and individual pluralism; in terms of degree, there are radical pluralism and moderate pluralism; and as far as rationality is concerned, the principle of pluralism is preferable. The principles of moral reasoning applied to economic ethics mainly include the theory of consequences, the theory of non-consequences, the theory of comprehensive social contract combining consequences and non-consequences, and the normative principles. Principle diversity and integration is a process of two sides, and moral relativism have some contact, but can not be attributed to moral relativism, but the long-standing economic ethics in a democratic society.