Abstract: With the vigorous development of tourism, tourism planning as an emerging discipline comes into being. Tourism planning provides a theoretical guidance to tourism, so it should go before tourism. However, the actual situation is not so. In fact, theoretical research has lagged behind. This article tries to set up a strategic model of tourism development employing Taiji(Supreme Pole), Liangyi(Two Modes), Sixiang(Four Images), Bagua (Eight Trigrams), Jiugong(Nine Palaces) from Yi-ology for tourism planning, taking Qingyuan City of China as an example. First, tourism genes are extracted from local terrestrial and cultural systems; second, based on the analysis of strengths, weaknesses, opportunities and threats(SWOT), the four basic relationships and eight orientations that tourism planning should address are presented systematically; the four basic relationships include quality-quantity, supply-demand, internal-external and large-small relationships, while the eight orientations include tourism destination characteristics, tourism quantitative index, tourism market, tourism product, tourism culture, tourism image, tourism function subarea, and tourism major project. Finally, a strategic model is developed.

Key words: Yi-ology theory, tourism planning, Qingyuan