The complexity and relevance of civil and commercial relations determines increasing of the third party. It could not avoid the third party if choose arbitration to solve the civil and commercial disputes. The arbitration third party system has not been confirmated in Arbitration Law of our country; the question and response exist at the same time. Under the new normal circumstance to improve the arbitration system and innovate arbitration thinking is imperative, the construction of arbitration third party system should be a breakthrough.