As enterprises continue to grow, Employee Assistance Programs (EAPs) have increasingly garnered the attention of managers, particularly in the human resource management service industry. This paper explores strategies for enhancing EAP services through three studies. Study 1 employs a questionnaire survey method, randomly selecting 227 employees from five human resource service enterprises in Shanghai that offer EAP services. The survey reveals issues in current EAP implementation, the state of employees when they do not receive EAP services that meet their needs, and the forms of EAP that employees desire. Study 2 summarizes enhancement strategies through in-depth interviews with 12 experts. Study 3 recruits 343 participants and conducts an experimental study with mindfulness exercises and sandplay therapy as independent variables and employee anxiety as the dependent variable. Empirical findings indicate that mindfulness guidance, sandplay games, and a combination of both in EAP services significantly reduce employee anxiety levels, confirming the effectiveness of the improvement strategies proposed in this paper. Through these methods, this study provides insights for improving the implementation of EAPs in human resource service enterprises. This has significant practical implications for the implementation of EAP services in enterprises and offers theoretical value and reference for improving EAP service methods in other enterprises, laying a foundation for advancing the development of EAPs in Chinese enterprises.