In recent years, urban car ownership has increased with rapid economic development, and urban traffic congestion has become more and more serious. Especially during the holidays, the number of people traveling by car has increased, the pressure on traffic is greater, and the traditional traffic lights are fixed. Far from meeting the needs of the current road conditions. The traditional green wave control is improved, and the intelligent algorithm such as fuzzy algorithm and genetic algorithm is used to solve the green wave period and signal timing. Taking Wuhan as an example, using VISSIM to simulate, the results show that the method effectively reduces vehicle delay and average number of stops, and improves the fluency of urban multi-junction traffic.