The embodiment of the invention discloses a testing method and device of an MIB base. The method and device are used for performing MIB testing when the EPON and EOC equipment of the broadcast and television networks are accessed into the internet, and the following technical problems are solved: the existing MIB Browser can only perform single-node create/read/update/delete operations on one equipment at the same time when in use, and only one oid can be operated once for the create and update operations, the difference comparison cannot be performed on multi-set of MIB versions to realize the increment testing, uniprocessor software does not support linux system, multi-user collaborative testing cannot be realized, the processing performance of some node cannot be tested through a way of adding the concurrence, the performance testing of the equipment cannot be selected in batch, the information statistics such as success rate and average time consumption of the testing result is absent.