在臺灣的端午節曾流行過頗為奇特的習俗，即為「石戰」習俗，這是人們相互投擲石頭、石塊的一種活動。本文試圖探討石戰習俗與「祛疾避疫」的關係，以在隱含在這個習俗背後的臺日官民互動。經由討論，我們可以了解石戰習俗是整合祛疾避疫的信仰，以及人群互動和集體狂歡等性質的節慶活動，卻被日人視為「蒙昧惡俗」。再加上石戰習俗具有強烈的群眾性格，時常演變成流血爭鬥，使得原本祛病避疫、解放狂歡的遊戲競技，成為一發而不可收拾的群眾對抗，此深為日人所忌憚。隨著日方統治力道的加深加強，日人的態度也一改原本的寬容放任而為禁絕阻止，經過日治時期的禁絕，我們目前不容易在臺灣看到端午擲石的習俗了。

Taiwanese held a special custom for a time in some places during the Dragon Boat Festive-Stone Battle Custom-people throw stones each other. This paper will analyze the relationships between Stone Battle Custom and epidemic avoiding, and explain the interaction between authority and plebeian that concealed the custom. Through researching, we can know the Stone Battle Custom consists of epidemic avoiding, community interaction, and Carnival. The Stone Battle Custom was regarded as a“barbaric custom”by Japanese authority. However, the Stone Battle Custom was often out of control, became a bloodshed conflict or crowds antagonism. Japanese authority is full of misgivings about the throwing stones custom. Therefore, Japanese authority took an attitude of restriction toward this custom. Owing to Japanese authority’s inhibition, we can’t see people hold throwing stones custom in Taiwan at present.