The purpose and significance of trusteeship are professional management, resource optimization and cost control. Custodians usually have professional skills and expertise, which can manage and operate entrusted activities or assets more effectively, improve management quality and efficiency, and reduce risks; Trusteeship can help the entrusting party to better manage and utilize resources and realize the optimal allocation of resources. The entrusting party can focus on its own core business and entrust non-core activities or assets to professional institutions to reduce costs, improve efficiency and concentrate its own competitive advantages.