The invention discloses a cognitive database information updating and optimizing method, which comprises the following steps of: acquiring parameters of a heterogeneous network; classifying the parameters according to attributes; judging whether to adjust the current data structures of the parameters in a cognitive database according to the classification attributes, and generating corresponding data structures according to the types of the parameters to be adjusted, otherwise, storing the parameters to the cognitive database according to the classification attributes of the parameters; and repeating the steps to update the parameter information in the cognitive database. The invention also discloses a cognitive database information updating and optimizing system, which comprises an information acquisition module, an information classification module, an information judgment module, a data structure generating module, an information storage module, an information updating module and the like. The database information updating quantity is increased and the database information processing time is reduced by a multi-dimensional multi-domain storage mode; and the effects of quickly positioning the information, processing the information and updating the information are achieved.