The invention discloses a risk checking device for an unstructured database, which is a software device for judging the version and the type of the unstructured database through port fingerprint identification and carrying out batch security detection on the unstructured database of the corresponding version, and the device is used for carrying out security detection on the unstructured database in a network. According to the invention, batch automatic detection of common vulnerabilities of unstructured databases such as redis, mongodb, memcache and the like is realized; the device can be applied to scenes such as online security evaluation and grade protection evaluation of various information systems, can effectively improve the security of the unstructured database, can be applied to network security check and vulnerability mining work, and can discover security vulnerabilities existing in the unstructured database of an important information system. For a system with vulnerabilities, network security professionals should give rectification suggestions in time: taking measures of offline rectification, customizing a WAF protection strategy, setting access control and the like, and eliminating potential safety hazards.