Femoroacetabular impingement (FAI) has been recognized as a cause of early hip osteoarthritis. For FAI surgical treatment, arthroscopic technique has become increasingly popular because of its minimal invasiveness. However, it involves cumbersome procedures and may result in over- or under-resection. To tackle this issue, robot-assisted FAI arthroscopy is a well suited approach because it leads to high accuracy and reproducible surgical outcomes. This book presents new approaches and methods for the current challenges in the development of robot-assisted FAI arthroscopy. Three major studies are covered in this book, including: 1) developing a robust calibration method for the A-mode ultrasound probe used for noninvasive bone registration, 2) developing a bone registration simulator for verifying the registration accuracy and consistency for any given registration point-pattern, and 3) developing a hip range of motion simulation system that returns the virtual range of motion and determines the bone resection volume.