The rapid development of migration processes in many modern countries requires the development of appropriate models for digital government regulation and control of migration. Therefore, the issue of effectively using modern digital technologies in migration management is becoming increasingly relevant. New practices for digitalizing the recording and analysis of migration changes are currently being developed in Russia. The digital transformation of public administration creates fundamentally new opportunities and legal challenges in ensuring law and order in regulating migration processes. A rise in cross-border movements and related offenses is underway, necessitating a scientific understanding of the role of digital technologies in migration control systems. The study utilized both formal legal and systems approaches. It analyzes regulatory legal acts related to the digitalization of migration control and doctrinal approaches to the principle of legality in the context of digitalization. It has been established that existing digital technologies – the state migration registration information system, the biometric identification system, and digital government services – function inconsistently and lack unified regulatory frameworks. Four systemic legal problems have been identified: the lack of comprehensive legislative regulation of digital migration control; the uncertainty of the status of digital evidence in administrative proceedings; gaps in the regulation of algorithmic solutions; and the insufficient legal protection of foreign citizens in the digital environment. Clarifications to the general principle of legality in the field of migration are proposed, based on the principles of proportionality of digital intervention, information transparency and digital jurisdictional certainty.