To reduce data loss and synchronization failure of node in large-scale applications of wireless sensor networks（ WSNs）

a kind of self-healing method of WSNs under sleeping mechanism is introduced by research of existing WSNs application system. Design ideas

implementation method of self-healing method and experimental process are discussed in detail. The experimental results show that this method can carry out node self-rescue aiming at data loss

and node of time synchronization failure

realize reaccess the Internet of lost node and resynchronization

improve system stability of WSNs and lay a foundation for further application of WSNs.