ABSTRACT
The research work focus on the Effect of Trade Union on Workers Productivity and organisational behaviour. Trade Union has been one of the most discussed topics in the field of Industrial Relations, However, the main essence to Trade Union is to allow workers to determine collectively the conditions of their employment which they cannot hope to pursue as individuals. This project therefore tried to survey the perception of workers particularly Nigeria Eagle Flour Mills Limited Ibadan. Oyo State. It was concluded and shown clearly that Trade Union have effect on workers productivity and organisational behaviour.