The high intensity of tourism activities in the Bedengan Watershed may affect the quality of water and soil in the river area, which can be indicated by the density of riparian vegetation. The purpose of this study was to determine the density and diversity of riparian vegetation along the Bedengan River in Selorejo Village, Dau District, Malang Regency. This study employed a systematic quadrat transect vegetation analysis method with descriptive quantitative data analysis. Vegetation density data were calculated using a density formula and supported by abiotic factor data. The determination of sampling locations and data grouping was based on growth criteria to obtain species abundance data using purposive sampling. The study was conducted in the downstream area of the Bedengan River from May to June. The results showed that the total absolute density value of the riparian population was 6.42, indicating that a higher density value corresponds to a higher level of vegetation density. Five plant families were identified, namely Fabaceae, Asteraceae, Poaceae, Oxalidaceae, and Equisetaceae. The most abundant species was Ehrharta erecta, with a total absolute individual density of 2.33. The least abundant species were Albizia julibrissin, Oxalis barrelieri, Emilia sonchifolia, Sorghum halepense, and Bidens bipinnata, each with a total absolute individual density of 0.04. Abiotic component data included soil temperature of 23°C, soil moisture of 4, soil pH of 5.5, air humidity of 75%, water temperature of 20°C, and wind speed of 34 m/s.