Abstract: As planting areas of major crops, hilly and mountainous areas pose serious challenges to design and performance of agricultural machinery power chassis for their unique terrain characteristics．Focusing on technical demands for power chassis in complex terrain of hilly and mountainous areas, current research progress and application of key technology in power chassis were analyzed．Main problems included insufficient technical adaptability, high research and development, design and manufacturing costs, and a lack of integrated coordination and systematic research．Targeted solutions were proposed to solve problems．Combining with intelligent upgrading, new energy transformation and upgrading, modularization and lightweight, and other technological development trends, future power chassis technology direction in hilly mountainous areas was explored to promote high-quality development of specialized power chassis research and application for hilly and mountainous areas．