This paper presents the prototype of a foreign language learning space, based on the construction of an integrated formal/informal learning environment. Before the background of the continued innovation of information technology that places conventional learning styles and educational methods into new contexts based on new value-standards, environment models of foreign language learning constantly face the necessity to change. A structured environment for foreign language learning can be created only when the learning environment in the real space, which is constructed in many forms outside the classroom, constantly connects with the formal learning environment inside the classroom. This study assumes two axes of a learning environment--formal/informal and real/cyber space--and attempts to integrate them to create a circulating four-dimensional model. Integrating formal and informal environments connects real space, which depends on the physical location and situation, with cyber space, which does not. In this study, sentences written in a foreign language by language learners will be auto-collected and analyzed in cyber space, which plays a great role in students' daily lives. Thus, a 4D foreign language learning environment, which automatically delivers practical knowledge to the learner by a comprehensive analysis of formal and informal learning between real and cyber space, will be constructed. [For the complete volume, see ED578177.]