本研究主要是以投射技術中之繪樹畫(TDT)方式，探討青少年國中生， 在參加冒險性活動後，人格會產生何種變化及造成何種影響，所得結果如下： 一、受測者全體與男生的畫樹木之整體區域使用空間量，三次調查以追蹤測最 高，追蹤測較後測高且達差異顯著水準(p<.01)。女生受測者也是追蹤 測最高，但三次調查之間差異未達顯著水準。 二、各區城中A、B區，受測者全體與男生的畫樹木之使用空間量，三次調 查以追蹤測最高，追蹤測較後測高且達差異顯著水準(P<.01)。女生受 測者也是追蹤測最高，但三次調查之間差異未達顯著水準。 三、各區域的C、D區，受測者全體、男生與女生畫樹木使用空間量，三次 調查以追蹤測為最高，但差異未達顯著水準。 綜合上述的結果，冒險性活動對於青少年的人格提升效果具正面的意義， 在活動結束後30天的追蹤測之提高結果，更顯示出正面的影響效果。

　　　　　This paper discusses the personality changes of the junior high students after joining the adventure activities by suing the tree drawing test (TDT) method. This paper concludes that： (1) Among three different investigations; the male youth people samples and the whole samples get the highest score of the Tree Drawing Test using space in the thirty-day post test. The thirty-day post test score is higher than the immediate post test score, and the different investigation result reaches the dominant level (p<0.01). The female youth people samples get the highest score, but the different investigation result does not reach the dominant level. (2) In regions A and B, the male youth people samples and the whole samples get the highest score of the Tree Drawing Test using spaces in the thirty-day post test. The thirty-day post test score is higher than the immediate post test score, and the different investigation result reaches the dominant level (p<0.01). The female youth people samples get the highest score, but the different investigating result does not reach the dominant level. (3)In regions C and D, the male youth people samples, female youth people samples and the whole samples get the highest score of the Tree Drawing Test using space in the thirty-day post test. But the different investingation result does not reach the dominant level. The adventure activity can improve the personality characteristic of youth people. The thirty-day post test can get much better results.