ABSTRACT Environmental degradation and fossil fuel depletion due to rapid use of fossil fuels promoted the interest in development of alternative fuels. The main aim of this work is to optimize the transesterification process for production of biodiesel from linseed oil, which has a better properties of Viscosity, Flash point, and Calorific value. Biodiesel production depends upon methanol quantity, potassium hydroxide quantity, reaction time, reaction temperature and stirrer speed. Efforts have been made to optimize transesterification process by considering some of the above parameters. In addition, some technical test procedures used to determine the properties of the biodiesel are described briefly.