Aim: A comprehensive theoretical and legal analysis of international legal standards in healthcare, determining their content, classification and regulation features at universal and regional levels. Tasks include analyzing the concept of international health law standards, investigating historical formation stages, systematizing international legal acts, determining universal and regional protection features, analyzing specialized standards for certain population categories, and investigating implementation mechanisms at national level. Materials and Methods: Employ general scientific and special legal methods including dialectical, system-structural, historical-legal, comparative-legal, and formal-legal approaches, along with classification and systematization methods to structure international legal acts and create scientifically based typology. The empirical base consisted of 189 sources for the period 1948-2025: universal international acts of the UN and specialized organizations (23 documents), regional European agreements (15 acts), specialized conventions for individual categories of the population (18 documents), declarations and charters of a non-conventional type (12 acts), scientific publications (121 works). The search was carried out in the following databases: UN Treaty Collection, Council of Europe Treaty Office, WHO Global Health Observatory, Google Scholar, ResearchGate, PubMed. Conclusions: establish that international healthcare standards constitute a specific category with both general features (obligatory, universal, abstract) and special properties (specificity, scientificity, practicality, reliability). The evolutionary development from 1940s declarative principles to modern detailed norms reflects transition from state-centric to patient-oriented approaches. The multi-level structure includes universal/regional standards, mandatory/recommen datory norms, and general/special provisions, creating flexible legal regulation addressing diverse healthcare subjects’ needs.