Labor union is one apex body of labor which is established with the purpose of advocacy and bargaining for the rights and benefit of labor. Union itself is power which can discuss with government and non-government organization for the betterment of labor. The labor union advocates on the different types of needs and right of labor, but the study has explore the role of labor union in promotion of physical facilities for workers of manufacturing industries of Bara and Parsa district of Nepal. In total 385 workers were selected randomly for the structured questionnaire survey. The statistical analysis of eight indicators measured in the field to know the status of physical facilities shows that in total only 39.68% workers agreed that labor union had played the effective role to manage the physical facilities for labor union which is not satisfactory result on the basis of objective of labor union. So, the role of labor union should be more effective and need to develop the new strategy of their action.