Background. Fracture of the femur is a breakdown of the continuity of the groin due to trauma, muscle fatigue, or certain conditions. Handling cases of femoral fracture is usually done by medical means with the action of ORIF (Open Reduction Internal Fixation). One of the problems that arise when ORIF post operative femoral fractures is a disturbance in physical mobility. Which can be overcome by doing ROM (Range of Motion) exercise. Aim. To understand a nursing care in patients post operative fracture of the femur with impaired physical mobility. Method. The method used is descriptive with case study approach by doing nursing care from assessment to evaluation. Result. Both clients are Mr. L and Mrs. N complained about the same thing that is unable to move his left foot that had previously been done ORIF surgery. After the nursing action for 3 x 7 hours, it was found that on the third day after the ROM exercise, Mr. L is able to move the toes, ankle and shifting his left foot, subjective data is clients say often train his legs to get well soon. While Mrs. N, on the third day the client is able to move his toes and left ankle, the client's subjective data is still afraid to move his left leg. Conclusion. Clients Mr. L is able to improve the ability in mobilization faster than with Mrs. N because of the difference in motivation rate to get well between the two clients. Suggestion. Suggestions for clients to keep doing ROM exercises independently.