Abstract
As a result of not having regulations on emission control for agricultural machinery diesel engines, many low quality and high emission engines are still being used in Vietnam. Therefore, agricultural machinery diesel engines are becoming a source of harmful emissions to the environment while no emission reduction solutions have been applied. The article will focus on researching and providing a solution to reduce emissions for agricultural machinery diesel engines on AVL-Boost software. The results show that, after the engine is equipped with an emission reduction system, the NOx and PM components will decrease significantly while the power does not decrease by more than 5%. The research results will be an important basis for developing emission reduction systems for agricultural machinery diesel engines.