Aimed at the feature of wireless sensor networks（WSNs）nodes

such as energy-constrained

limited communications capability and lower computing power and so on.Ant colony algorithm is applied to WSNs.A novel routing algorithm of WSNs which is based on ant colony algorithm is presented.The energy of nodes

distance

radius of communication and transmission direction and other parameters is taken into account.Research results show that this routing algorithm can reduce energy consumption

the dead number of nodes

routing hops and the length of data transmission path.As a result of prolonging the life of wireless sensor networks and making the WSNs fast and energy-efficient in the communication process.