Provided is a robot apparatus and a method of reconfiguring a software component and an internal environment that may autonomously optimize and reconfigure a component execution program, execution environment settings, and the like, dynamically reconfigure components using a component included in the robot or a component downloaded from a server, or optimally configure an internal configuration of the robot, in response to the provided command so that the robot apparatus may perform a provided command in response to a change in an environment by dynamically recognizing the change in the environment when an environment in which the robot is used, although the external environment or the internal environment is changed while the robot is operated.