NVIDIA Isaac Lab is an open-source robot learning framework that utilizes GPU acceleration and is built upon Isaac Sim, aimed at streamlining and integrating various robotics research processes such as reinforcement learning, imitation learning, and motion planning. By harnessing highly realistic sensor and physics simulations, it enables the effective training of embodied agents and offers a wide range of pre-configured environments that include manipulators, quadrupeds, and humanoids, while supporting over 30 benchmark tasks and seamless integration with well-known RL libraries, including RL Games, Stable Baselines, RSL RL, and SKRL. The design of Isaac Lab is modular and configuration-driven, which allows developers to effortlessly create, adjust, and expand their learning environments; it also provides the ability to gather demonstrations through peripherals like gamepads and keyboards, as well as facilitating the use of custom actuator models to improve sim-to-real transfer processes. Furthermore, the framework is designed to operate effectively in both local and cloud environments, ensuring that compute resources can be scaled flexibly to meet varying demands. This comprehensive approach not only enhances productivity in robotics research but also opens new avenues for innovation in robotic applications.