A chatbot-based cloud management system, including: an interface for receiving a query from a client through a plurality of access channels, and delivering a response generated in response to the received query to the client; a chatbot engine for performing a response processing to the query based on a chat learning model learned in advance and a chat knowledge context, and outputting event occurrence information when a request event from the query occurs; and a processing engine for confirming failure occurrence situation of an infra where the request event has occurred and providing it to the chatbot engine by generating failure countermeasures corresponding to the failure occurrence situation based on a failure model learned in advance and a failure processing rule, when event occurrence information is received from the chatbot engine.