The article describes various joining methods of two natural casings pieces used in the sausage industry. It focuses on the use of high-frequency currents (HFCs) used in various areas of technology and medicine. Based on the experience of HFC applications in medicine, in the process of joining of living human body tissues during operations. Attempts have been made to use this method of joining in relation to extracted intestines in the process of obtaining natural casings for the sausage industry. The results of the experiments that were conducted are presented in the publication.