In this study, a sensor system was designed and manufactured to measure the interface pressure between the limbs (upper, lower)and the orthosis or between the stump and the socket prosthesis. It is also used to determine the value and location of corrective forces when using orthosis to correct deformities in the limbs or spine. The sensor system consists of a force sensor mat (43.69mm x 43.69 mm), Arduino, an LCD monitor, and connecting cables. When comparing the device manufactured in this study with other devices, this device is characterized as lightweight, easy to move, low cost, and gives instant pressure on the LCD screen. In this study, the interventional pressure measurement system was manufactured and programmed and compared to the F-Socket measurement system. The practical part was tested on a patient suffering from med-lateral instability in the ankle joint at the right leg. The interventional pressure between the leg and orthosis was measured in two ways in the regions (posterior, lateral, medial). The first method using the pressure measurement system manufactured in this study and the second method by using the F-Socket device. The test results showed that the values of pressure readings using the manufactured system are close to the values of pressure readings obtained when using the F-Socket device. This indicates that the accuracy of the readings of the manufactured system and can be used for research purposes as well as in the process of placing pads in the appropriate place within the orthosis to correct the deformity or help to provide valuable information on the manufacturing, modification and fitting of prosthetic sockets, despite its simple structure and low cost as compared with F-Socket devise