The great efficiency of marine diesel engines is known since the very beginning of their development, which is why they are still used today. There has been an improvement in the way that engines work due to the requirements of the shipowners that want to make some savings and strict rules of exhaust emissions. That is the reason why intelligent marine engines were developed. One of the biggest advantages of this kind of engine is the precision when it comes to the regulation of fuel injection, which improves its works at different loads, making it more efficient and reduces smoke. In practice, more often are used technologies that allow monitoring engine work from long distances and display data collected by sensors and signals in case an alarm went off. The long-distance monitoring allows experts to monitor engine work and give recommendations for optimal operation, or prevent the problem with the help of obtained data. Inspector and registrar have information on the quality of maintenance and monitor exhaust emission. This paper aims to apply the system of long-distance monitoring to the marine engine and to monitor engine work.