Abstract: A ultrasonic transceiver embedded system for gesture recognition is designed to realize ultrasonic gesture recognition for improving the user experience.The system includes front-end drive circuits design of the transmitter, signal acquisition circuits design of the receiver, SOPChardware circuit design and software design accordingly.The experimental results show that the emission, reception and subsequent data transmission of ultrasonic can be controlled correctly by the hardware and software implementation scheme of the system.Meanwhile, the phase synchronization between emission and reception is also ensured.Finally, the intact gesture echo signal is obtained at the PC side.