Two-phase flow is the flow that flows in a channel at one time simultaneously consisting of two phases / forms of fluid (liquid-gas, liquid-solid, gas-solid). In the two-phase flow of distribution, each phase is very important because it can affect the characteristics of the flow pattern. The formation of the flow pattern is influenced by the viscosity of a liquid fluid, the superficial velocity value of the gas, and the superficial velocity value of liquid fluid. The purpose of this study was to determine changes in flow patterns and flow pattern maps of viscosity values, angular variations, superficial gas velocities, and superficial velocity of fluids. The study was conducted on a 1,6 mm diameter mini pipe which was mounted at an angle of 450 towards the horizontal position. The fluid used is a mixture of air-water and glycerin with concentrations of 40%, 50%, 60%, and 70%. Filming the flow patterns using the Nikon J4 camera then the video was analyzed to get the shape of the flow pattern based on the values of JG and JL. After this analysis, it was mapped in the form of a flow patterns map with JG as the x axis and JL as the y axis. The results of the study show that the higher the value of viscosity affects the shape of the flow pattern. In this study there are five flow patterns, namely: bubble, plug, slug-annular, annular, and churn. The viscosity of the liquid affects the flow pattern formed. Comparison of flow pattern maps with the results of previous studies occur several differences in the transition line.