This is related to knee rehabilitation device. This can prove to be beneficial to people experiencing knee movement impairment. This device can help the user in undertaking different movements of the knee by means of two different platforms (58, 74) including curved and flat one. The foot is held in a pedal (34), movement of which on the platform helps the user to rehabilitate the impaired knee. The construction of the foot pedal has been done in such a way that additional weights (52, 53) can be attached to enhance the strength of the knee along with its free movement on both the platforms. Further, the angle of the platform (58), which is flat, can be changed as per the need of the user.