海上保险委付行为被依传统观点认为是民事法律行为 ,或为单方民事法律行为 ,或为双方民事法律行为。本文依据各国的法律规定和民事法律行为的基本理论 ,论证了委付行为真实的法律性质 ,即委付行为是被保险人所实施的民商法上的单方行为 ,该行为在德日法例中是被保险人实施的单方法律行为 ,在英美和我国法例中则为被保险人为订立委付合同所发出的要约。 Marine insurance commissioned behavior is traditionally viewed as a civil law act or as a unilateral civil law act or as a civil law act between both parties. This article argues that the act of disposition is the legal nature of the act of disposition according to the law of each country and the basic theory of the act of civil law. That is, act of disposition is the unilateral act of civil and commercial law enforced by the insured, which is The unilateral legal acts carried out by the Assured are, in the Anglo-American and Chinese laws, the offers made by the insured for the conclusion of the contract of hire.