The present invention provides a method and tool for cutting open corncob, in which the tool is mainly composed of a rod body connected with a cutting sheet. By striking the tool to cut open the corncob along the axis of the corncob axis, the corncob after cutting open may be easily broken into blocks or shucked with corn kernels.一種剖開玉米穗的方法與工具，主要是由一支桿體上連接著一剖切片而組成該工具，藉由敲擊該工具使該工具沿著玉米穗軸心線將玉米穗剖開以便將剖開後的玉米穗折成塊狀或剝下玉米粒。
