NOVELTY - Biodiesel preparation includes a temperature control system, a spray humidifying system, a conversion system, a lifting system, organic waste (residue, pig manure, chicken manure, dairy manure and food waste) and corrodible insects (fly, Chrysomya megacephala and flour weevil larvae). Biodiesel from organic waste is prepared by placing organic waste into a conveying pipeline (1) using a slurry pump (10). The Discharge quantity of material by a discharge port (2) is discharged into a groove of upper bracket through a valve (3). Water pipeline (4) is connected with a spraying port (5).    USE - Method for preparing biodiesel from organic waste (claimed).    ADVANTAGE - The biodiesel preparation method is simple, eco-friendly and suitable for large scale production of food, and enables to produce the product that is cost-effective.    DETAILED DESCRIPTION - Biodiesel preparation includes a temperature control system, a spray humidifying system, a conversion system, a lifting system, organic waste (residue, pig manure, chicken manure, dairy manure and food waste) and corrodible insects (fly, Chrysomya megacephala and larvae of flour weevil). Biodiesel from organic waste is prepared by placing organic waste into a conveying pipeline using a slurry pump. The Discharge quantity of material by a discharge port is discharged into a groove of upper bracket through a valve. Amount of organic waste is dicharged in a groove surface with decomposable food insect larvae, where the inoculating quantity is 1000/kg organic waste and the water content of the material is 70-80 %. A water pipeline is connected with a spraying port. The conditions are maintained by temperature control system and spray humidifying system, where temperature is 25-32 degrees C and humidity is 60-75 %. Larva is dispersed completely in the organic waste within 2 days to utilize organic waste. A rigid conversion groove is connected with lock catch. The mixed material is collected into a collecting cart, and then the obtained material is processed in a microwave. The obtained material is extracted with solvent to obtain bio-diesel. The obtained product is dried at 50 degrees C. Protein feed additive is prepared by using obtained insect residue.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a biodiesel preparing device.    Conveying pipeline (1)    Discharge port (2)    Valve (3)    Water pipeline (4)    Spraying port (5)    Slurry pump (10)