The article “Social work in the grassroots Ho Chi Minh Communist Youth Union Organization in the era of national growth” provides an in-depth assessment of how Youth Union cadres understand and apply the Party's guidelines and views in social work. This study is especially meaningful in the context that the country is undergoing a strong socio-economic transformation, placing increasing requirements on the role of youth and Youth Union organizations in promoting sustainable development, ensuring social security and increasing people's participation in social governance. Through practical surveys and rigorous quantitative analysis, research clarifies the level of awareness of grassroots Youth Union officials, the main factors affecting this awareness and the difficulties in the process of implementing social work activities. The results of the study show that, although the majority of Youth Union cadres are well aware of the role of social work in building trust between the Youth Union and the youth and the community, there are still differences between the youth and the community.A part of cadres, especially in areas where there are still many difficulties, are still confused in applying social work methods and skills in accordance with the new conditions. This shortage affects operational efficiency, limits the ability to engage youth and spread positive values to the community. In addition, objective challenges such as the speed of digital transformation, urbanization, labor migration, and changes in population structure are also increasing the complexity of social work. These changes require the Youth Union organization to innovate the content, mode of operation and improve the capacity of the Youth Union staff. In addition, the unsynchronized coordination between the Youth Union ministries and other socio-political organizations is still a major barrier in the effective implementation of social work programs.To overcome these shortcomings, the study proposes many strategic solutions, including emphasizing the strengthening of theoretical and practical skills in social work for Youth Union cadres; applying digital technology to Youth Union activities; promote interdisciplinary coordination mechanisms and build a flexible management system to adapt to the new context. Implementing these solutions well will help the grassroots Ho Chi Minh Communist Youth Union to strongly promote its core role in social work, contributing to building a generation of pioneering and brave youth and contributing to the nation's journey of reaching out in the new era.