The travel blog website will increasingly focus on participation and interactivity of tourists under web 2.0,yet the existing travel blog does not reflect the interactivity or the time-and-spatial characteristics well.A new WebGis travel blog based on the ASP.NET platform and Google maps Gmap3 integrated API is developed and discussed in this paper.The system consists of two sub-systems named route planning and travel blog.In the route planning sub-system,all of the applications are developed based on the Google map,including destination lookup,travel arrangement and navigation.In the travel blog sub-system,all the travel blogs are expanded around the Google map,and integrated with text,pictures,video and other multimedia information.The system features with the advantages of simple operation,strong interactivity,and good experience.