Wiggins gasholder has a very prominent role in gas system and has served in Benxi Steel for more than 20 years. In the past Wiggins gasholder has had various hidden dangers in actual operation, some of which were quite typical and dangerous. Combining with 20 years of experience, the paper analyzes and summarizes the causes and countermeasures of several typical hidden troubles in Wiggins gasholder, bearing much importance for defect treatment and maintenance of Wiggins gasholder.