By dissecting the close relationship between the disease and syndrome

and comprehensively analyzing the data related to the disease syndrome

this paper summarized three aspects basic relationships between the disease and syndrome

which were level

scope and degree. In the depth of level

it is reflected as the disease process changing from simple to complex; in terms of scope

the different stages of the disease correspond to a single syndrome

a composite syndrome or a syndrome group; in terms of severity

it refers to the strength of the association between the disease process and different syndromes. In terms of structure level

the topological analysis of the inner structure level of syndromes is used to construct an analysis model of the association level of disease syndrome through the hierarchy of disease structure and the level of syndrome structure. In terms of the scope of association

through the scope of disease spread and the number of syndromes

a complex data network with the scope of disease syndrome is established

and an analytical model for the association range of disease syndrome is constructed. In terms of the degree of association

through the severity of the disease and the complexity of the syndrome

the multivariate degree of the syndrome association intensity was quantified

and an analytical model of the degree of association of the disease was constructed. The analysis of disease syndrome data by the above-mentioned complex scientific methods is a feasible method to deeply understand the relationship between disease and syndrome

and it is expected to establish an analytical methodology based on the overall status of disease-related data.