Abstract: To solve the problems of unbalanced energy consumption and the high energy consumption of header cluster effectively in the wireless sensor networks (WSN), the paper proposes an optimized transportation layer algorithm which is based on the genetic algorithm (GA), low energy adaptive clustering hierarchy (LEACH) algorithm, and ZigBee protocol. The algorithm introduces a new type of topological structure and improves the threshold function based on distance and energy consumption for WSN. The simulation results show that the proposed algorithm can achieve a 95% reduction of communication energy consumption of key cluster head with 9% increase of overall energy consumption, thus effectively improving the uniformity of the energy consumption of WSN, and extending 1~3 times working life of the whole WSN.