Globalization is influencing every aspect of businesses and in many cases is changing the nature of the way the business activities are performed including trade union movement. The study is aimed at exploring the relationship between globalization and trade union movement. The study examines the causes of globalization. It argues that there are different theories that explained the reasons for the development of trade union movement. The study explores the issues, challenges and opportunities of globalization and identifies the role of union members, employers and government. It also indicates the future directions of trade union movement in the era of globalization.