Abstract: Mobile crowdsensing technology is a technique that can break through the limitations of time and place, and realize large-scale real-time crowdsensing data perception, transmission and sharing anytime, anywhere. However, the existing mobile crowdsensing applications confront with some security, privacy and efficiency problems in the crowdsensing data sharing, such as unauthorized data access, privacy leakage of access control, key escrow of single-authority, and high access overhead. In order to tackle the above problems simultaneously, this paper proposes an attribute-hiding based efficient and decentralized scheme for mobile crowdsensing data sharing, which not only allows mobile users to specify attribute-based access control for encrypting crowdsensing data, such that only users who meet the access control can access the data, but also allows multiple authorities to jointly generate private keys for swarm crowdsensing users, so that any a single authority cannot illegally access the target crowdsensing data by pretending to be a legitimate user. In addition, it enables fast decryption and accessing target data with the lowest energy consumption without leaking attribute privacy of access control. This paper also gives strict security analysis and performance analysis to prove that our scheme is secure, efficient and feasible for the mobile crowdsensing data sharing.