Abstract: Disclosed are a method and a device for constructing database model with ID-Based data indexing-enabled data accessing, applied to EDA software, comprising: in the creation stage of the database, assigning an ID to each data object, and creating corresponding ID Wrappers for different types of data objects respectively; a corresponding ID is stored in the ID Wrapper, and the ID is used for identifying the indexed data object, and the method of accessing the corresponding data object is software-encoded in the ID Wrapper; in the use stage of the database, each calculation module of the EDA software generates a data access requirement in the running process of the EDA software; directly using a corresponding ID Wrapper to access the corresponding data object; and executing a data access instruction written based on the programming rule in the ID Wrapper to access a desired data object.