Abstract:The information asymmetry between integrators and providers leads to a decline in the efficiency of logistics service supply chain. To solve this problem, integrators need to motivate providers to share information from both information technology and information exchange. This paper considers the conversion coefficient of provider information technology and information exchange effort, constructs multi-task principal-agent model to study the information sharing incentive strategy of integrators to providers. By analyzing the characteristics of optimal incentive contracts, this paper proposes the theoretical suggestions for motivating providers to standardize logistics information technology, strengthen information exchange and prevent opportunistic risks, providing basis for integrators to make decisions.