The microclimate environment monitoring is significant for agricultural production. Several characteristics of microclimate environment monitoring can be summarized from a variety of monitoring systems. Particularly, environmental data collected by multiple sensors have shown temporal and spatial properties simultaneously. The need for geospatial analysis and data visualization in monitoring microclimate environment became the main focus. In order to achieve this, a certain kinds of techniques were explored including internet of things (IOT) perception, the information fusion and data visualization. Furthermore, a unified interface specification was established to fuse IOT data with geographic information system seamlessly. In order to display and visualize the multidimensional environmental data, a series of visual methods were developed. Moreover, a web geographic information platform was built by using the Baidu Map APIs. In addition, several components were implemented including the geospatial analysis component, visual monitoring component, and some location based mobile applications. Finally, a flexible and vivid visualized monitoring system was formed. The adoption of this system could make it more convenient and easier to visualize and understand the microclimate environmental conditions via different terminal equipments.