The embodiment of the invention discloses a data relationship completion recommendation method and device, and is applied to the technical field of information processing. In the embodiment of the invention, the data relationship completion recommendation device can predict a second category of evaluation parameter values obtained when various data relationship completion methods are adopted for independently completing a dataset to be completed according to a first evaluation parameter value obtained when various data relationship completion methods independently carry out certain form of relationship completion on a training dataset according to various data relationship completion methods, then, the mathematical calculation value of the second evaluation parameter values can be taken asa completion evaluation score, which aims at a certain-form relationship, of a corresponding data relationship completion method, and finally, at least one data relationship completion method in various data relationship completion methods can be recommended according to the completion evaluation value. Since the training dataset is determined according to the completion dataset, through the method of the embodiment of the invention, a proper data relationship completion method can be recommended by aiming at the data characteristics of the dataset to be completed so as to complete the dataset to be completed in a certain form of relationship.