The invention belongs to the technical field of network security, and in particular relates to an IP address database establishing method and terminal equipment. The method comprises the steps of: obtaining IP addresses provided by various service systems; collecting the obtained IP addresses, so that collected IP addresses are obtained; selecting an IP address, which is not yet selected, as the current IP address from the collected IP addresses; converting the current IP address into the IP address in the pre-set format, and storing the converted IP address in a designated database; and returning to the step of selecting the IP address, which is not yet selected, as the current IP address from the collected IP addresses, and next steps till the collected IP addresses does not include theIP address, which is not yet selected. The IP addresses in different formats are converted into the IP addresses in the pre-set format; therefore, when IP address identification and matching are carried out again, automatic matching in the same mode can be directly carried out; and thus, the matching efficiency is greatly increased.