The aim of the research was to determine the rheological properties of water based ROF (Residual oat flour )– sucrose systems, with various mutual proportions. Analyses were done by means of Micro Visco–Amylo–Graph (Brabender, Duisburg, Germany). It was demonstrated that increasing concentration of ROF in water based systems decreased the pasting temperature, and increased the viscosity of the resulting pastes, and the course of these changes was of a linear nature. Moreover, every increase of the share of sucrose in ROF suspensions, irrespective of flour concentration, accelerated the beginning of pasting, and caused an increase in viscosity, both the maximum and at cooling stage of the investigated systems.