日治初期，由於乙未戰爭過程中敗陣而四散的漢人兵勇，結合了清領時期藏匿在內山的「土匪」，形成了一股複雜的勢力。這群「土匪」一方面為維持生存，持續騷擾近山地帶的村民。另一方面，卻又打著反日的民族主義旗幟，號招民眾參與並藉此壯大聲勢。 1898 年兒玉源太郎的「匪徒刑罰令」對於土匪造成極大的壓迫。然而，這些流離於山區的勢力並未散去，反而更往內山撤退，並且與泰雅族大豹群結盟，形成了特殊的「原漢合作」模式。本文以日治初期日方對三角湧與暗坑方面「土匪」的追擊過程，以及1907年發生在插天山隘勇線上的「大嵙崁蕃匪騷擾事件」（日方所稱）為主，透過文獻探討、口述以及現場踏查為方法，探討「土匪」多次轉進到當時的大豹群「蕃地」，甚至一起抗日的過程，並分析其中的互動模式與相關因素。其中，主要聚焦在族群互動、經濟關係與地緣關係等不同的領域探討，並且進一步比較「土匪」與大豹群、馬武督群之間的互動差異。

In the beginning of the Japanese colonial era, the Han soldiers who were scattered following the defeat in Itsubi Senso (Yiwei War) joined forces with the “bandits” who had previously concealed themselves in the inland mountains during the Qing Dynasty, which became a multifaceted military entity. On one hand, these “bandits” persistently harassment the local inhabitants near the mountainous regions, they also aligning themselves with the cause of anti-Japanese nationalism. Under Kodama Gentaro’s “Penalization of Bandits” policy in 1898, they did not disappear; instead, they withdrew to the inner mountains and established an alliance with the Atayal Topa Tribe, resulting in the unique alliance between the Han Chinese and the indigenous people. This article centers on the Japanese efforts to combat “bandits” in the Sann-kak-íng (Sam-kiap-khu) and Amm-Kheng in the beginning of Japanese colonial rule. Additionally, it examines the “Takoham Bandit Harassment” in 1907, as referred to by the Japanese, which took place along the Jatian Mountain Pass Line. This article examines the process by which the “bandits” repeatedly migrated to the territory of the Topa Tribe during a specific historical period. It also investigates instances where these bandits formed alliances with the indigenous people to resist the Japanese forces together, drawing upon various sources such as literature, oral testimonies, and on-site investigations. Additionally, it examines the patterns of interaction and factors that are associated with them. This article mainly focuses on different spheres such as ethnic interaction, economic relations and geographical relations, and further compares the differences interactions between "bandits" with the Topa Tribe and the M'utu Tribe.

「土匪」;大豹群;隘勇線;大嵙崁蕃匪騷擾事件;地緣關係

“Bandits”; Topa; Defense Lines of Frontier Guards; “Takoham Bandit Harassment”; Geopolitics