▎ 摘　　要

NOVELTY - The utility model claims a micro nano optical fiber humidity and gas sensor and detection device based on graphene oxide, comprising a pedestal, an upper cover plate and used for placing the to-be-tested fibre pad, the upper cover is combined on the base, the upper cover plate and the pedestal form a test chamber of a sealed pad is set in said test chamber, further comprising a humidity generator for supplying moisture into the test chamber. The utility model can make stable moisture out of the test chamber so as to provide experiment is a test chamber when required humidity, ensures the accuracy of the test, this embodiment further has simple structure, easy manufacture and low manufacturing cost.