With the gradual deployment of integrated projects for wind solar green hydrogen synthesis and ammonia synthesis in China, electrolytic cells not only need to achieve effective tracking of wind solar power, but also must ensure the economic viability of downstream hydrogen production and ammonia synthesis, which poses higher requirements for operational strategies. Therefore, a multi-electrolysis cell operation strategy that balances wind and solar power tracking with the economic benefits of green hydrogen synthesis of ammonia is proposed. Firstly, a mathematical model for the integrated system of wind solar green hydrogen synthesis of ammonia is constructed. Then, considering the tracking effect of wind and solar power and the economy of green hydrogen synthesis of ammonia, based on multi-objective optimization methods, an optimization scheme for the coordinated operation strategy of multiple electrolytic cells is designed. A multi-objective optimization algorithm based on improved knee region (IKR) is proposed for this multi-objective optimization problem. Finally, the actual data of the wind solar hydrogen synthesis ammonia integrated system in Da'an City, Jilin Province is used for verification, and the results show that the proposed method can balance the power tracking ability and economy of the electrolytic cell, and improve the overall operating efficiency and revenue of the system.