In the process of aircraft safety design and evaluation, Zonal Safety Analysis (ZSA) is a critical component. Zonal safety analysis is considered as the analyzing and checking processes taken place on a physical prototype to reduce the function performing risks of overall aircraft and systems from physical integrations like assembly and maintenance, including coordination and compliance checks between structure and systems, and between system and system. To enhance the efficiency of Zonal Safety Analysis and improve its standardization and operability, a typical process for Zonal Safety Analysis has been outlined, and the elements and key steps involved in conducting such analyses have been distilled. Logical relationships among the various key points of Zonal Safety Analysis have been analyzed. Based on the new-published ARP 4761A and AC 25-27A standards, an improved Zonal Safety Analysis method oriented towards the manufacturing process has been proposed. This new method integrates the key points of Zonal Safety Analysis under typical scenarios and provides detailed analysis details for critical systems such as Electrical Wring Interconnection Systems (EWIS). The improved Zone Safety Analysis method can effectively enhance analysis efficiency, promote the standardization of Zonal Safety implementation and application, and improve on-site operability, providing a reference for the practical application of Zonal Safety Analysis in manufacturing frontline operations.