Taking the application of all optical network technology in multiple campus as the research scene,a smart campus network with a high starting point,high standard and high level is built.The integrated network technology is adopted to build a safe,stable,controllable and seamless roaming infrastructure network for the whole school to pro-vide high-speed and convenient Internet access services for teachers and students on campus.In order to further im-prove network performance,the end-to-end service details from network planning to business opening are intro-duced.A genetic algorithm is designed and applied to multicast business optimization to promote the wavelength oc-cupied by multicast as short as possible.Simulation experiments show that the genetic algorithm has fast convergence speed and high reliability,which can improve the service quality of the network to a certain extent.