In response to the maintenance requirements of airborne radar in field operations, this paper proposes a process-oriented automatic measurement method for the parameters of airborne radar signals based on the spectrum analysis module. The principles and steps of automatic parameter measurement for multi-system radar signals are analyzed in detail in the paper. Corresponding testing software is also developed to execute the relevant algorithms and enable streamlined measurements. Additionally, four signal simulation experiments are designed to validate the effectiveness of the proposed method. The experimental results demonstrate that this method can achieve a comprehensive measurement of multiple parameters of typical radar signals in a streamlined manner, without relying on traditional general instruments. It solely utilizes the sampling data provided by the spectrum analysis module in different working modes. The measurement results are accurate and effective, meeting the requirements of field maintenance support. Therefore, it possesses strong engineering application value.