Hip replacement (total hip arthroplasty) is surgery to replace a worn-out or damaged hip joint. The surgeon replaces the old joint with an artificial joint (prosthesis). This surgery may be a choice after a hip fracture or for severe pain because of arthritis. It also helps relieve hip pain that can’t be controlled by other treatments. Aim of the study: To evaluate the effect of evidence based progressive exercise program on functional outcomes for patients after total hip replacement surgery. Aquasi-experimental design was used to conduct the current study in orthopedic unit and outpatient clinics, at Benha university hospital during the period from beginning of November 2019 till beginning of November 2020. Subjects: A convenient sample of 60 patients recruited according to the study criteria. Tools: Four tools were utilized for data collection, 1) Structured interviewing questionnaire sheet, 2) Structured Knowledge questionnaire, 3) Performance based measures and 4) Self-reported measures. Results: Showed that the mean score regarding knowledge, performance based and self- reported measures were significantly higher after implementing the evidence based progressive exercise program than before program implementation. Moreover, there was a positive significant correlation between knowledge and each of HOOS and hip ROM scores, while a negative significant correlation with TUG. Also, there was a negative and significant correlation between Hip disability and Osteoarthritis Outcome and timed up and go test, where the higher the HOOS score the lower the score of TUG (p=