With the access of mass terminal devices and different business requirements in the Internet of Things

it is necessary to flexibly deploy services within the network.This paper proposes a distributed collaborative network service layout algorithm based on multi knapsack model.By collaborative acquisition of global network through the network nodes

the network modeling layout problem service can be modelled as multi knapsack problem.Therefore

the optimal layout can be obtained.The simulation results show that the reasonable layout of the network service in the network can maximize the network efficiency

improve the utility ratio and the response rate of the node.The proposed method can achieve smooth operation of the Internet of Things and its applications.