|| This study attempts to develop a management model at cross-cultural work environment, which explains how managers’ perception affects their organisational performance. The model is created based on findings of quantitative research conducted toward Japanese aid project managers working in developing countries. As a result of cluster analysis, four types of aid project managers were identified. The model clarified how four types of aid project managers perceive, behave and consequently lead to either high or low performance organisation. Finally, this study indicates that fostering and maintaining positive perception are a key for successful organisation.