The MAC protocol is an important technology for the creation of the network infrastructure.It achieves two goals in the sensor network

the first is the establishment of the links for data transfer;the second is to fairly and efficiently share communication resources between sensor nodes.Current several kinds of quite typical MAC protocols are analyzed according to the energy saved aspect.Wireless network topological structure based on wine is proposed

a New-MAC protocol and is given.Data collision problem and synchronization problem are discussed.The simulation experiment shows that the New-MAC can solve the energy consumption and prolong the life cycle of the network.