Most patients with fracture injuries due to accidents are the femur. Internal fixation of plates and screws as a medium for healing femoral fractures. Internal fixation of plates from PLA/PCL biodegradable polymers is the most widely used to replace metals. Biodegradable polymers have many weaknesses in terms of mechanical strength which is still low and the rate of degradation is difficult to control. The addition of nHA reinforcement to form composite materials with the cold isostatic pressing method at high compaction pressure can increase mechanical strength. PLA/PCL/nHA composite materials were made into specimens for characters that can reduce the porosity’s size and increase mechanical strength. High compaction pressure has no significant effect on material properties. The proof is that the FTIR test of the three specimens still has band peaks which are identified as elements of the PLA/PCL/nHA composite material. The XRD test results prove the same, which show a widened diffraction peak. This means that there are no crystal peaks in the composite material, this proves that the structure is amorphous, the level of crystallinity is low and the degradation time is faster. The most optimal compressive and tensile strength test results at a compacting pressure of 40 MPa with a compressive strength value of 71.2 N and a tensile strength of 23.36 N/mm2. This compaction pressure can reduce the porosity’s size, the surface is smoother, the interfacial bonds are stronger, the density is high and the mechanical strength increases larger. However, the compressive and tensile strength is still below the strength of the femur bone at the implant site.