The equipment that impinges the object with high velocity airflow and freezes it quickly is called impingement quick-freezing equipment. The nozzle form of the equipment is one of the important factors to determine the flow field in the freezing zone, which affects the heat transfer characteristics between the object and the surrounding environment. Based on the nozzle structure of the impingement quick-freezing equipment, the influence of the inclined angle, arrangement and shape of the nozzle on the heat transfer characteristics of the flow field in the impingement quick-freezing equipment is discussed in this paper. Find that the nozzle-to-plate spacing（H/d）and the Reynolds numbers of the fluid play a decisive role in the relationship between the nozzle inclination angle and the average Nusselt numbers. In addition, the different shapes and arrangement of the nozzles also have a great influence on the airflow organization in the system.