契约理论、司法权理论、混合理论和自治理论从不同的角度考察了仲裁的性质,但是,这四种理论均未能圆满地解释仲裁的性质。文章从马克思主义唯物辩证法关于现象与本质的辩证关系对仲裁性质进行分析,并认为仲裁是契约性、自治性和司法性的有机结合,是以当事人的一致同意为基础的、高度自治的,并以国家法律的确认和保证实施的一种解决国际商事争议的法律制度 Contract theory, judicial theory, mixed theory and autonomy theory examine the nature of arbitration from different perspectives. However, none of the four theories satisfactorily explain the nature of arbitration. The article analyzes the nature of arbitration from the dialectical relationship between phenomena and essence of Marxist materialist dialectics. It argues that arbitration is an organic combination of contract, autonomy and judicature. It is based on the unanimous consent of the parties and is highly autonomous A legal system to settle international commercial disputes, which is confirmed and guaranteed by national laws