Stem education – an educational model of 4.0 Era, is an educational trend considered an effective educational model recognized by developed countries in the world. However, to apply this model to vietnam, it is necessary to pay attention to regional factors to choose which education model is appropriate for children, with the actual level of teachers and facilities condition. Localization is a very important thing before implementing a new spear model. In this report, the author wants to mention the difficulties encountered when implementing steam education model at preschool in mountainous areas of northwest vietnam with the characteristics of mainly ethnic minorities. We conducted a survey of 32 managers and 460 preschool teachers from 3 provinces of son la, dien bien and lai chau to explore these difficulties. Thence, proposing to orient solutions to be able to deploy this educational model effectively. Published under licence by iop publishing ltd.