Background: Turnover intention (TI) indicates an employee’s intention to depart from their current role within a defined timeframe. In China, the Targeted Admission Medical Education (TAME) program, initiated in 2010, offers tuition-free education to cultivate rural doctors. Despite continuous professional development (CPD) being considered a viable retention strategy, TI of alumni doctors from the TAME program remains high in recent years. This study aims to describe the prevalence of “turnover intention” among alumni doctors of the TAME program doctors in rural placements, and associated factors that predict high turnover intention. Methods: A snowball sampling method was adopted to collect survey responses from 1,369 alumni doctors of the TAME program in Jiangxi Province, China. Based on the survey data, a binary variable was constructed to measure the turnover intention, and multivariate binary logistic regression models were used to investigate the relationship between doctors’ turnover intention and demographic characteristics, work environment characteristics, and CPD activities. Results were presented using adjusted odds ratios with 95% confidence intervals. Results: Among the 1,369 alumni doctors of the TAME program surveyed in this study, 392 (28.6%) expressed intentions to leave their current positions. Of the respondents, 620 (45.3%) were female, and 930 (67.9%) were married. Additionally, 1,232 respondents (90%) indicated that their fathers were engaged in farm work. Strong associations with turnover intention were notably found among individuals who had undergone training at a higher-level healthcare institution for more than three months (aOR = 6.810, 95% CI: 3.333 to 13.909, p-value < 0.001), particularly those who had participated in CPD through a graduate degree program (aOR = 1.818, 95% CI: 1.272 to 2.597, p-value < 0.001). Conclusion: Rural doctors in China from the tuition-free medical education program exhibit high turnover intention, especially those in graduate degree programs as CPD. To retain these highly qualified rural doctors, it is vital to offer competitive efficiency wages aligned with their skills and provide ample long-term career growth opportunities within the rural healthcare system.