仲裁的本质是商事活动的当事人自行解决其纠纷,它适应商事争议解决的需要而产生和发展,是解决商事争议的有效方式:仲裁协议的本质是当事人意思一致,将其争议提交仲裁解决。随着商事实践的发展,仲裁协议书面性原则、合同相对性原则的发展和突破,使得仲裁协议的效力不断扩大,与仲裁管辖优先、当事人意思自治等原则共同构成仲裁协议对非签字人产生效力的法 The essence of arbitration is that the parties to the commercial activities settle their disputes by themselves. It is an effective way to solve the commercial dispute because it meets the need of the commercial dispute resolution. The essence of the arbitration agreement is that the parties have the same meaning and submit their disputes to arbitration. With the development of commercial practice, the development and breakthrough of the principle of written arbitration agreement and the principle of contractual relativity make the validity of arbitration agreement expand continuously. Together with the principle of arbitration jurisdiction and autonomy of parties, the arbitration agreement is effective for non-signatory Law