This paper proposes a computer supported ubiquitous learning environment for language learning. Especially, this paper describes context aware languagelearning support system for learning Japanese mimicry and onomatopoeia (MIO) words, which is called JAMIOLAS (Japanese Mimicry and Onomatopoeia Learning Assisting System). This system provides learner the appropriate MIO expressions deriving the learner’s situation and sensor data. Phidgets is used as sensors in order to get realworld data from the physical world, e.g., temperature, humidity, etc. This paper describes the implementation, the interface and usage scenario of JAMIOLAS.