Herein, we report a highly active Ru@PVP nanocatalyst for the hydrolytic dehydrogenation of dimethylamine-borane under room conditions. The Ru@PVP nanocatalyst was readily prepared, stabilized and used effectively in the catalytic dehydrogenation reaction of dimethylamine-borane in water at room conditions. The prepared Ru@PVP nanocatalyst was characterized using advanced analytical methods such as XPS, XRD, HR-TEM, etc. The characterization analyzes shown that Ru metals are uniformly distributed on the PVP support surface; the mean particle of catalyst size was found to be 2.78 +/- 0.16 nm. The catalytic test showed that DMAB had a high catalytic activity with Ru@PVP in aqueous solutions, and TOF value was found to be 2500.52 h(-1) for hydrolytic dehydrogenation of DMAB at room conditions. The study also included kinetic data such as activation parameters for different temperatures, catalyst concentration, and substrate concentration experiments. (C) 2019 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.