The utility model discloses an embedded control system of a lopper saw for a high-voltage live-line working robot. The embedded control system comprises a main processor. The main processor is connected with an AD sampling module. The AD sampling module is connected with an ultrasonic sensor. The main processor is connected with a first digital quantity acquisition module and a second digital quantity acquisition module. The first digital quantity acquisition module is connected with an infrared obstacle avoidance sensor. The second digital quantity acquisition module is connected with an encoder. The main processor is connected with an emulator via an emulator interface. The main processor is also connected with a reset circuit, a crystal oscillator circuit and a peripheral interface module. According to the embedded control system, continuously variable transmission and positive and negative rotation control are available, the control is flexible, and reliability is high; and the modularization design is adopted, and the embedded control system is provided with various peripheral interfaces, can be connected with various sensors and drivers and the like conveniently, and is powerful.