Monitoring and collecting marine litter from the sea surface are key aspects of preserving marine ecosystems and protecting the marine environment from pollution. There are a number of methods that are used to solve this problem, and in this paper they are described in detail and analyzed using a SWOT analysis. The SWOT analysis of methods of monitoring and collecting marine litter from the sea surface highlighted a number of key aspects that are important for the preservation of the marine environment. The strengths of these methods, including the precision of identification of larger debris through advanced technologies and the ability to monitor potential debris accumulations, provide the basis for rapid and targeted intervention. On the other hand, weaknesses such as the lack of precision with smaller scraps and the dependence on favorable weather conditions point to the need for further technical and technological improvements. Opportunities such as the development of autonomous cleaners and the application of artificial intelligence for in-depth data analysis open up new perspectives in the fight against pollution. The paper describes several innovative methods and devices used to remove marine litter from the sea surface in ports and marinas. Among the mentioned methods, the monitoring of floating marine litter from the air stands out as particularly effective, since it enables the detection of larger objects and the inspection of a wider area. The use of unmanned aerial vehicles (drones), aerial patrols, high-resolution satellites and automated object recognition techniques provide various opportunities for precise identification and monitoring of debris on the sea surface. Future technological progress opens up opportunities for improvement of these methods.