Agriculture has so significant role for people because of for their feeding, clothing, economy. Agriculture extension also is so important in the branch of the agriculture. You can produce something but it does not matter without training and extension. It looks like some producer produce new product but without advertisement they cannot spreading and they cannot expand and so it can have said that agriculture extension is like to advertisement of agriculture and production. The purpose of extension is to raise the standard of living of farmers and their families in rural areas. Extension studies are often described as "helping people to help themselves". This approach is valid for many countries in the world and has traditionally focused on farmers and rural communities. The basic model for agricultural extension include: technology transfer, farmer first and participatory approaches. Participation is the active participation of the local community in setting and determining agendas for their communities, rather than allowing them to decide on their needs and priorities, using the skills of foreign donor organizations. The level and type of this involvement directs the development process in society and affects its sustainability. This study aims to address basic understanding and concerns about participation. This work, which has become an important tool for developmental interventions, will try to answer the questions that the participation realizes and aims to reach and the traps of the method in practical and theoretical practice.