Abstract:Tropical crops constitute a significant component of global agricultural production and trade. However, their wide distribution, complex operating environments, and low level of harvesting mechanization have become critical constraints on agricultural development in tropical regions. Focusing on major tropical economic crops, including rubber, cassava, sweet potato, and coffee, as well as tropical fruits such as coconut, their distribution characteristics and industrial scale were systematically reviewed and comparatively analyzed. It further summarized the harvesting patterns, structural features of harvesting equipment, and recent advances in key operational technologies for different crops. Given that tropical crops were typically cultivated under high-temperature and high-humidity conditions, in heavy and cohesive soils, predominantly across hilly and mountainous terrains, and often exhibited dispersed maturity periods, mechanized harvesting in tropical regions faced multiple challenges. These included insufficient fundamental theoretical research, a shortage of small-scale machinery suitable for hilly and mountainous areas, restricted operational conditions for mechanized applications, and incomplete industrial support systems. Accordingly, future development should prioritize strengthening research on harvesting mechanisms, promoting the integration of agricultural machinery with agronomic practices alongside scale-oriented cultivation, advancing lightweight and precision-oriented harvesting equipment, and improving the industrial chain and organizational systems.