Gelatin is a structure-forming agent produced from animal raw materials. The origin of gelatin determines the technological features of its production processes. In order to increase the efficiency of equipment use and to produce high quality products it is necessary to rationalize the modes and conditions of one of the main production processes, namely the process of drying. This determines the need to identify and account for independent technological parameters that determine the values of specific productivity, thermal efficiency, determining the technical and economic indicators in the organization of the technological flow, in particular, its intensity and timing of storage of end products, and as a consequence, reducing the duration of the process and its energy and resource consumption. As part of the present work, experimental and analytical studies were carried out to rationalize and evaluate the efficiency of fish gelatin drying processes. The kinetic regularities of fish gelatin drying were studied in order to establish a rational dehydration regime. The dependence of the variation of the specific output of the end product in the drying plant on the parameters determining the transfer rate of heat and substance during dehydration of gelatin in the dispersed state were revealed and mathematically described. The study of the mechanism of the dehydration process and its kinetic regularities makes it possible to formulate and solve the physical and mathematical problem of determining the rational parameters of the drying operation and modelling this operation in order to predict its modes for similar products.