Microservices principles refer to the foundational concepts that guide the design and implementation of microservices architecture. This architectural style breaks down applications into small, independently deployable services, each focused on a specific business function. Key principles include single responsibility, autonomy, and decentralized data management, which enhance flexibility, scalability, and maintainability. By adhering to these principles, organizations can develop and evolve different parts of their applications independently, leading to faster deployment cycles and improved system resilience. Understanding these principles is crucial for developers and architects aiming to leverage microservices effectively in modern software development.