This study aims at teaching senior high school geography by outdoor education to explore traditional outdoor education and the outdoor education involving application of mobile devices, the learning achievement whether there are differences.
To accomplish the objective ,the researcher selected tow classes in senior high school in New Taipei City and adopted quasi-experimental method. The two classes will give the experimental education. After the experiment, through the exam paper to analyze students’learning achievement. Expected results for the outdoor education involving application of mobile devices, the students’ learning achievement will higher.

Keywords :mobilc deivecs, Geography, outdoor education