This research aims to evaluate the level of application of green human resource management practices in ready clothing company for children in Mosul, and their influence on sustainable performance in this important manufacturing sector. Over the past few years, companies generally have faced pressure from stakeholders (government, customers) to implement green practices, where it is becoming essential to identify environmentally friendly business practices that boost sustainability. Despite green human resource management practices getting substantial attention from scholars, studies associated with green practices stay limited. The descriptive and analytical approach was adopted, and the questionnaire was used as a quantitative tool to collect data from (42) respondents. The results revealed that green human resource management practices were implemented at an average level, and the overall average was (3.486). In addition, a sustainable performance at a high level was achieved (3.763). The research reached a number of results, including that there is a significant correlation and effect of green human resource management practices on sustainable performance. Several recommendations consistent with it were presented.