High-entropy strategy is a design that uses multiple elements to increase configurational entropy. As an emerging research field, high-entropy was originally applied to metals, but it has shown great potential in inorganic nonmetallic materials. Since the first discovery of colossal dielectric permittivity in high-entropy ceramics, it indicates that the high-entropy strategy is feasible in dielectric ceramics. The multi-ion solid solution will bring a broader space for the material structure and property tailoring. With the research of domestic and foreign scholars in high-entropy dielectrics, we believe that entropic engineering can effectively regulate dielectric properties. The review paper explores the potential of the high-entropy strategy in dielectric ceramics. It provides a detailed overview of the structural properties and the potential benefits of utilizing high-entropy materials in dielectric ceramics. The review also covers the current research advancements in the field and provides insights into future directions for further development of high-performance dielectric ceramics.