Onion is vital ingredient of Indian cooking. Its test, flavor enhance test of food. This is the reason why onion is important crop. In recent years onion production in Solapur have been increased. Farmers showing interest in cultivating onion crop. In Solapur district farmers cultivates Red onion and white onion prominently in Kharif and rabbi season. Red onion cultivation is high throughout the district. Farmers get benefits by cultivating onion but sometimes situation becomes opposite and Onion cultivators could not get even minimum output. In above context efforts are taken to understand pattern of market arrival and price fluctuation to overcome the economic loss by cultivating onion in Solapur district.