The invention discloses an Echarts-based hierarchical diagnosis and treatment analysis and data visualization system, comprising a data cleaning module used for acquiring information about patients, diseases and hospitals from medical record information, a patient analysis module used for analyzing medical treatment of the patients, transfer treatment, characteristics of the patients, influence factors of choices for the hospitals and the like from the levels of provinces, cities, districts and counties, a disease analysis module used for analyzing disease regional characteristics, disease seasonal characteristics, cross-level disease treatment characteristics, different place disease treatment characteristics, common disease treatment characteristics, slow disease treatment characteristics and the like from the levels of provinces, cities, districts and counties, a hospital analysis module used for analyzing sources of the patients clinically accepted by the hospitals, characteristics of the clinically accepted patients and structural characteristics of the clinical diseases from the levels of provinces, cities, districts and counties, and a data visualization module used for realizing analysis result visualization by means of drawing a map, a dynamic flow graph, a thermodynamic diagram, a pie chart or a histogram. After the Echarts-based hierarchical diagnosis and treatment analysis and data visualization system is adopted, a hierarchical diagnosis and treatment analysis process is more systematized, and data analyzing and processing efficiency is improved.