Provided in the present invention are a 1-[(pyridin-3-yl-sulfonyl)-1h-pyrrol-3-yl] methanamine derivative having the structure shown below in formula (I) and a pharmaceutical composition and use thereof. The 1-[(pyridin-3-yl-sulfonyl)-1h-pyrrol-3-yl] methanamine derivative provided in the present invention has good gastric acid secretion inhibitory activities and excellent pharmacodynamic properties, while having relatively low toxicity.