There have some problems must be solve in electronics industry:Mobile devices must be small、light and low power consumption;The life cycle of Consumer-electronic products are getting shorter and shorter;For those requestments we implement a platform. The platform has two parts Java CPU and hardware OS. The Java CPU can commit across-platform requestment. Hardware OS (μC/OS-II) can speed-up system performance and reduce the CPU utility rate. Applation developer just use Java technologic to build Embedded System easily in this platform.