Recent demand and interest in patient health monitoring has driven significant interest toward developing varies alternative rehabilitation monitoring instrument. Muscle power can be seen from how many power it’s generate from contraction effort that can be sense by its voltage potential in microvolt order. Surface Electromyogram (EMG) is used to take the record acquisition of muscle power data as patient take the rehabilitation program for some period. In this paper the surface EMG designed to get some level amplification to maintain the data readable and filter to minimize noise that always is the problem from instrument to get data. The aim of the research is to design compact surface EMG device that can be record data development of muscle power over time.