Objective: This study aimed to review and analyze policies regarding the enrollment thresholds for migrant populations to participate in the urban and rural residents' medical insurance in the place of usual residence in typical cities. It compared policy differences and innovative measures across cities to provide suggestions for improving enrollment policies. Methods: A total of 89 cities were selected nationwide. Relevant policy documents on the enrollment of urban and rural residents' medical insurance for 2025, released by the surveyed cities and their provinces, were retrieved from their official websites and WeChat official accounts. Content analysis was used to extract and statistically analyze the policy texts. Results: Most surveyed cities had removed household registration restrictions for migrant populations to enroll in medical insurance in their place of usual residence, allowing them to participate in urban and rural residents' medical insurance with a residence permit. However, a few large cities or megacities still maintained household registration or other restrictions for migrant populations, focusing on accompanying children and spouses. Conclusions: It was recommended to take enrolling primary and secondary school students and preschool children with non-local household registration in large cities or megacities into the local urban and rural residents' medical insurance as a breakthrough point, gradually expand to the enrollment of accompanying spouses with non-local household registration, and steadily advance the implementation of urban and rural residents' medical insurance enrollment policies for migrant populations in the place of usual residence.