The purpose of this study is to grasp the distribution characteristic of tour cave in northeastern Asia. It is examined to use internet homepage to get the status of tour cave in northeastern Asia. First, the total of tour cave is 116 and, in type limestone cave is extremely many. Second, the distribution character by nation has been shown China, Japan and South Korea in sequence. In the type tour cave, China, South Korea and North Korea are more popular with limestone cave while Japan, Taiwan, and Hong Kong have more marine caves. This study mainly relies on the research of internet homepage. Therefore, after this, activated research about tour cave is needed through comparison and analysis with more concrete statistical data and tourist behaviour by nations