Applying the theories and methods of counseling psychology in an enterprise is the core of workplace counseling and mental health. Reviewing related research on workplace counseling and mental health can facilitate understanding the development of workplace counseling and mental health research in Taiwan. This study adopted the literature review to understand the research results of workplace counseling and mental health in Taiwan. The key words of workplace counseling, employee assistance programs, and workplace mental health were used to conduct the search in the " Index to Taiwan Periodical Literature System" and "Airiti Library". Up until April 2022, there were 51 papers that matched the purpose of the study and were thus selected and analyzed. The results indicated that: (1) The research categories are counseling and education (73%), management and labor safety (20%), medical care and health (8%). (2) The research methods are literature review (35%), practical application (27%), qualitative research (22%), quantitative research (12%), and mixed methods research (4%). The contents of workplace counseling involved employee work efficiency, mental health, etc. (3) The papers on workplace counseling and mental health with the period of 2016 to 2021 accounting for 42% of all 51 papers. (4) Among the 51 papers, there are only 8 quantitative studies, and most of them focus on the discussion of the source of stress and the survey of employees’ willingness to use counseling. They do not link employee counseling with employees’ leave or productivity changes, 5 of the 13 qualitative studies mentioned that the ethical viewpoint of business counselors has shifted from a single client to dual client. The biggest challenge for workplace counselors were how to balance the ethical principles of client confidentiality and the benefits of counseling for business owners. (5) In Taiwan, most of the empirical researches on workplace counseling and mental health were based more on qualitative interviews than on quantitative analysis, the analysis results were based on personal feelings of employees’ satisfaction, and no analysis was conducted concerning objective factors such as employee absent hours or productivity. In addition to the descriptive statistical analysis of 51 corporate consultation documents, this study also sorted out the quantitative research methods and research results of 8 quantitative studies (including 2 qualitative mixed studies) to provide reference for future research. According to these findings, detailed results and suggestions for further research were discussed.