The invention discloses a zigzag island type platform of a parallel elevated road, and belongs to the technical field of urban traffic and urban planning. Urban diseases such as excessive aggregation,job-house separation and traffic jam are caused by guiding urban expansion by a subway; parallel elevated roads are used for guiding city expansion, and the parallel elevated roads are too wide and are difficult to construct in old urban areas. According to the zigzag island type platform, the zigzag island type platform of the parallel elevated road is divided into three sections, and the two ends of a middle zigzag section are connected with two straight line sections respectively. The parallel elevated road adopting the zigzag island type platform is narrow, line selection is facilitated,the demolition amount is small, the engineering amount is small, and the cost is low. A public transport annular channel is formed by parallel elevated roads, new and old urban areas are connected, cities are guided to expand, and an annular city is formed; the bus speed is high, the bus slow stop spacing is small, fast and slow buses are matched, the walking environment is good, and the public transport advantages are obvious. The annular city is large in gathering scale, good in resource sharing and occupational-residential balance effect, balanced in house price, beneficial to employment and obvious in energy conservation and emission reduction effect.