Plants are like a cradle that supports many lives on Earth. Mankind has also lived with plants for a long history and used its power. The Applied Plant Engineering Laboratory conducts research to contribute to society using the power of plants. As an example, the heat island phenomenon is one of the problems in an urban area with high-rise buildings. As a countermeasure to this problem, the development of rooftop greening materials using moss is required. Also, phalaenopsis is popular for gifts with beautiful appearance. If we make phalaenopsis with blue flower color, it will create new commercial value. Currently, students are conducting research on these two themes.