The issues related to the distribution of trichinella larvae in various groups of skeletal muscles of animals are quite relevant, as they are of great importance for the diagnosis of trichinosis. There is a lot of contradictory information in scientific papers about the distribution of trichinella larvae in the muscles of spontaneously infected predatory mammals. The purpose of our research was to study the distribution of trichinella larvae in various skeletal muscle groups in spontaneously infected red foxes (Vulpes vulpes). Detection of trichinella larvae was carried out by compressor trichinelloscopy and by the method of digesting muscle tissue in artificial gastric juice. Capsule-forming trichinella (Trichinella spp.) were found in animal muscles. The most intensively affected were the large masticatory muscle (68.1±30.7 larvae in 1 g of muscle tissue), diaphragm (65.3±25.6), intercostal muscles (63.7±23.1) and tongue root muscles (58.9±25.2). A lower intensity of invasion was noted in the splenius (36.6±14.4). In the triceps muscle of the shoulder (2.1±2.2) and the calf muscle (2.9±2.5), a very low intensity of invasion was recorded. Trichinella larvae were not found in the latissimus dorsi muscle, trapezius muscle, biceps femoris muscle, superficial gluteus muscle and middle gluteal muscle. Thus, in the spontaneously infected red foxes studied by us, the highest invasion intensity was noted in the muscles of the trunk and head.