The most important priority in any organization is the protection and maintenance of the workforce. Today, with the integration of sciences such as ergonomics, safety and health in work environments and the common goal that all these sciences seek to achieve, i.e. improving the safety and health of employees and productivity, Examining their impact on the above matters is of great importance. By knowing the existing situation in the organization and the attitude of people in this regard, it is possible to deal with many problems at their roots and correct them. The current research was conducted with the aim of examining ergonomics and entropy in cabin design and installation of new devices in Air Force planes. This research is quantitative in terms of applied type and descriptive-survey research in terms of research method. The statistical population of the research consisted of all the C-130 flight crews in the number of 60 people. The main data collection tool was a researcher-made questionnaire derived from theoretical foundations, whose face and content validity (CVR-CVI) and reliability were calculated and confirmed by Cronbach's alpha method. The obtained data will be analyzed in two descriptive and inferential sections. In the descriptive statistics section, tables, graphs and mean and standard deviation tests were used, and then in the inferential statistics section, the t-test was used. Also, the software used SPSS version 23 was analyzed. The results showed that ergonomics and entropy were not considered in the design of the cabin and the installation of new devices in Air Force planes and they are not in a good condition. Therefore, in order to strengthen the ergonomic status of the device discussed in this research, due to the lack of aviation knowledge in the country, similar devices such as iPad tablets or Garmin devices can be modeled. I believe that improving the quality of the product in various dimensions, such as increasing the brightness of the keys on the control panel, the amount of tampering with the control panel, and redesigning the system based on the physical condition of the flight staff can help improve this situation.