The relationship between Thailand and India during1950-1986 is considered as an important period in thehistory of these two countries. Their reciprocal relationsin various fields have developed progressively. The author is interested in 1) focusing on therelationship between Thailand and India 1950-1986 and 2)using the results of the research as a basis to suggest waysof improving the relationship in the future. The study shows that the relations between Thailandand India may often be influenced by the impact frominternational and regional events. Moreover, on the nationallevel, the policy of both countries also plays an importantrole in the relationship in political,economic and socialaspects.