Abstract: The mechanical weeding technology is important in reducing the usage of herbicide and ensuring organic rice production in paddy field. The weakness of the existing paddy weeding machines was discussed and the types and characteristics of paddy weeding techniques were summarized in this study, based on reviewing the present status of paddy weeding equipment and technology at home and abroad. The paddy weeding technology should develop toward intellectualization, technicalization of mechanical biomimetics, and fusion of several weeding techniques to improve the precision weeding effects, so that weeding technology can play a more important role in rice production.