Abstract: Supported by 1874 articles published in CNKI and Web of Science database from 2007 to 2021, using the bibliometric visualization analysis, this research reviewed the progress and future trends of biochar on water cycle process form six aspects: publication data distribution, composition of institutions, representative teams, references, keywords and methods. Results show that articles on the influence of biochar on water cycle has risen rapidly in recent years. The leading institutes concentrated in Chinese Academy of Sciences, United States Department of Agriculture and Northwest A&F University. Three highly cited journals include GEODERMA, CHEMOSPHERE, and SCI TOTAL ENVIRON. There have been formed a series of research hotpots in this field, focusing on quantifying the effects of biochar addition on soil physical properties, soil hydraulic properties, crop growth and yield based on two methods: the experimental research and the Meta-analysis. It is urgent to integrate experimental data, focus on scale transformation, and develop distributed hydrological model considering the impact of biochar on water cycle processes.