The depletion of fossil fuels and the worst impact on environmental pollution caused of their burning have led to the search for renewable clean energies. Nowadays, there are many sources of renewable energy. Biodiesel is just one source, but a very important one. Biodiesel is gaining more and more importance as an attractive fuel due to the depleting fossil fuel resources. Chemically biodiesel is monoalkyl esters of long chain fatty acids derived from renewable feed stock like vegetable oils and animal fats. This Project work describes the small invention setup (Plant) for preparation of biodiesel from any biodiesel feedstock. This project also gives details of work carried out for fabrication of small scale biodiesel production plant. The plant is not only portable but also suitable to support rural population who wish to become self manufacturer of biodiesel, also for research and experimental purpose. The project work includes fabrication of reactor vessel made of Stainless Steel 304 ( for 2 liter capacity) which includes heating oil, ceramic insulation, temperature sensor, motor with blades also includes separating funnel, receiver. It also describes the method of synectics of biodiesel. in this project work biodiesel was produce from soybean oil and properties obtained from biodiesel shows close relevance to biodiesel standard. This project is also gives simple and detailed working structure of large biodiesel plant and their production line.