Objective : This study aimed to identify the quantitative changes and trends in research topics related to vocational rehabilitation in Korea over time, thereby examining shifts in the domestic vocational rehabilitation paradigm. Methods : The study analyzed a total of 1,531 academic and thesis publications related to vocational rehabilitation, which were registered in the database of the Korea Education and Research Information Service (KERIS) by 2023. Quantitative analysis was conducted on the collected data, and general frequency analysis and keyword analysis, and topic modeling were applied to 938 documents that contained abstracts. For topic modeling, the Latent Dirichlet Allocation (LDA) algorithm was used to classify keywords. Excel, SPSS, and R were used for analysis. Results : The quantitative analysis revealed 904 academic papers and 627 theses. The Korean Society of Vocational Rehabilitation had the highest number of academic publications, while Daegu University produced the most theses. In the keyword frequency analysis of vocational rehabilitation studies, "job" had the highest frequency, followed by "persons with disabilities", "vocational rehabilitation", "rehabilitation facilities", "needs", and "society". Among the 11 main topics derived from topic modeling, "Topic 7: Return to Work for Injured Workers" was the most commonly discussed. The analysis of changes in research topics over time showed that "Topic 2: The Meaning and Value of Vocational Rehabilitation Based on Personal Experience", "Topic 6: Effectiveness of Vocational Rehabilitation Services", and "Topic 7: Return to Work for Injured Workers" have been steadily increasing, whereas "Topic 5: Personal and Social Efforts for Economic Independence", "Topic 8: Policy and System Improvement to Promote Employment of Persons with Disabilities", and "Topic 9: Vocational Training for Successful Employment and Job Retention" have been decreasing. Conclusion : This study confirmed that vocational rehabilitation can be defined as "achieving employment and satisfaction for persons with disabilities through rehabilitation facilities, social support, services, and programs", aligning closely with the goals and directions of occupational therapy. It was also found that the quantitative and qualitative changes in vocational rehabilitation research are closely related to the enactment and revision of national laws and policies.