Embodiments of the present application disclose a method and an apparatus for sharing and acquiring information. A specific implementation of the method for sharing information includes: receiving access information of a wireless access point shared by a first terminal device, where the access information of the wireless access point is included in a connection record generated by the first terminal device; and storing the access information of the wireless access point, and synchronizing the access information of the wireless access point with other nodes of the blockchain. In this implementation, the blockchain stores the access information of the wireless access point, and all nodes of the blockchain store the access information of the wireless access point, thereby improving stability of the stored access information of the wireless access point, and better providing a wireless access service for users.