Starting from the characteristics and flow field measurement requirements of two-stage and four stage low-speed large-size axial compressors，this article explores the structural forms and installation methods of different total pressure probes，analyzes the requirements of various probe forms for the incident angle of the incoming flow and their influence on the measurement results，and proposes the necessity of using a flow comb total pressure probe to measure the total pressure of the compressor inlet and outlet and inter stage airflow. Among them，a 6-point flow collection type dressing total pressure probe was processed and manufactured，and the superiority of this type of probe for measuring the total pressure of the internal flow field of the compressor was confirmed through flow field calibration.