JavaBeans is a software component model that allows developers to create reusable software components in Java. These components can be used in various applications to provide specific functionalities without needing to write the entire code from scratch. JavaBeans include properties, events, and methods that define their behavior and can be easily integrated into different development environments. The use of JavaBeans promotes code modularity, reusability, and encapsulation, resulting in more efficient and maintainable software systems.