Optimizing the urban spatial layout is an important guarantee for improving natural ventilation in cities. Based on meteorological observation statistical analysis, numerical model simulation, and remote sensing inversion calculation, a natural ventilation planning technology covering both the city and community scales is proposed and applied in the Shijiazhuang metropolitan area in Hebei Province, China. Meteorological data obtained from observation stations were utilized to analyze local wind speed, direction, and frequency. The results revealed diverse wind characteristics in different regions. Winds blowing from the western mountainous area, characterized by high vegetation coverage, are predominantly west and northwest. This wind is a significant source of clean air and serves as a natural ventilation inlet for Shijiazhuang. In the northern area, winds are primarily northwest and north, while in the southern area, winds are mainly southeast and south. Additionally, there is a notable heat island effect within the second ring road, which has an elliptical shape with the long axis oriented from east to west and the short axis oriented from south to north. This effect shows a clear trend of eastward expansion. Based on this research, six primary ventilation corridors and thirteen secondary ventilation corridors have been established. The direction of these corridors aligns with the local wind patterns, and the width of the corridor is calculated based on the city’s capacity and required ventilation efficiency. Subsequently, an urban climate analysis map (UCAnMap) was developed considering climate sensitivity. Planning recommendations were provided to enhance the urban climate environment and optimize spatial layout in different climate zones. It’s worth nothing that there exists a negative correlation between ventilation efficiency and building height within the blocks. Increasing the height of the buildings will decrease the proportion of comfortable wind zones, and the overall ventilation efficiency of the block will weaken. Based on the principle that the average wind speed ratio is greater than or equal to 0.5, it is concluded that the average building height of a typical block should be controlled within 45 m, which matches the ventilation performance requirements, and these results can also serve as a guide for building parameters that are conducive to ventilation. The ventilation efficiency of the block has a certain negative correlation with the building density. By reducing the building density, the mean wind velocity ratio and the comfortable wind zone ratio of the block can be appropriately increased. If the building density decreases by more than 10%, the proportion of calm wind areas will decrease by about 2–5% compared to the original situation.