The aim of this work was the modelling of the water absorption process for seeds of selected crop plants. A logistic curve and Chapman’s equation were used for the mathematical description of the first and second phases of the process prior to germination. Parameters characterizing the kinetics of the process of the water absorption, resulting from the properties of these functions and related to important parameters of tested seeds were determined. The highest MWR coefficient (coefficient of the maximum water absorption rate at the inflection point of the logistic curve) was observed for radish seeds (39.61⋅10–3 kg H2O kg– 1 d.m. h–1) and beet seeds (69.16⋅10–3 kg H2O kg– 1 d.m. h–1), whereas the lowest MWR was obtained for broad bean seeds (5.35⋅10–3 kg H2O kg– 1 d.m. h–1) and bean seeds (7.07⋅10–3 kg H2O kg– 1 d.m. h–1)