In recent years, reducing the dimensions and weight of aircraft has been one of the priority issues. A clear example of this is the fact that modern airplanes are almost completely electric. Integrated Modular Avionics (IMA) makes solving the key issues mentioned more accessible. In the presented article, in accordance with the technical task, the data transmission networks used in modern airplanes were investigated, ethernet and its use on board were considered, the integrated modular avionics system was analyzed, and its innovative possibilities were determined. Because of its modularity, reusability, portability, and affordable re-certification, Integrated Modular Avionics is a preferred option for aviation applications where safety is a top priority. Hardware-independent APIs such as ARINC 653 enable IMA-based systems to share hardware and middleware to handle numerous applications with different levels of criticality. Strong time and memory partitioning is made possible as a result, reducing the chance of interference or failure. System dependability is increased by the ARINC 653’s standardized software architecture, which guarantees the distinct division of software functions. Strict safety regulations, such as DO-178C software guidelines, which need thorough documentation of the software development process, must be followed by aviation systems.