This study aims to investigate the performance of the tubular reactor for the hydrolysis reaction of propylene oxide to produce propylene glycol with sulfuric acid as a catalyst. The performance of the reactor studying using mathematical modelling and computer simulation. The reactor model base on a homogeneous model with an emphasis on the dispersion model and assumption steady-state condition, nonadiabatic, and the gas phase follows the ideal gas rule. The kinetic reaction follows the previous study. The performance of a tubular reactor for the hydrolysis reaction of propylene oxide affected by operating conditions. Rising temperature and C3H6O/H2O ratio increase the yield, and on the other hand, increasing superficial velocity and reactant concentration will decrease the reaction conversion.