Abstract: In order to further improve the comprehensive operation efficiency of the agricultural water fertilizer integrated machine in China and realize the optimal allocation of mixed concentration of the water consumption and fertilization, a feasibility analysis and research on the whole machine control based on fuzzy strategy was proposed. Based on the operation structure of the whole machine, considering the dynamic balance of water and fertilizer in the synchronous process of the irrigation and fertilization, a correct fuzzy strategy model was built, and the software design and the hardware matching of the system was carried out. Through the verification of the effect of the upgraded water and fertilizer integrated machine in the implementation of irrigation and application, which showed that the overall test process of the water and fertilizer integrated machine control system based on fuzzy strategy was smooth, and the uniformity of fertilizer solution could be relatively improved by 8.77%, the responsiveness and stability of the system for each monitoring parameter were maintained above 90%, which verified the feasibility of the design; The water-saving rate and fertilizer utilization rate under the test were increased to 91.70% and 93.15% respectively compared with those before the application of fuzzy strategy. The overall irrigation efficiency was good, it also showed the superiority of the application design of this fuzzy strategy, which would be very good reference value for realizing the in-depth improvement of the intelligent control level of the water and fertilizer integrated equipment.