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The aim of this research is to develop a laptop micro reactor system which can apply to many chemical synthetic processes. If we can reach the reactive conditions quickly and effectively using this micro reactor system, the speed of research and development will improve spectacularly. Here we design and fabricate a prototype of micro reactor with integrated fluid control devices. Developed fluid control devices are micro pumps, micro mixers, and a temperature regulator. Especially, the micro mixer is a novel one which has an active mechanism with a magnetic actuator. In the estimation of the micro pump, we have obtained the maximum flow rate and pressure was 1.15 ml/min and 2.76 kPa under the following conditions: voltage, 40 Vp-p; frequency, 2 Hz. In the estimation of micro mixer, we confirmed the effectiveness of the mixing in 0.163 s. The results indicated the availability of these devices. We represent a first possible step towards a laptop micro reactor system for chemical synthetic process.