A defecation chair comprises a chair base, a defecation support frame, a defecation device seat body and a control device. With the control device to actuate a water drawing motor, clean water can be sprayed out from a water-jet hole to stimulate the anus. Besides, a massage unit is cooperated therewith to massage vertebral acupoints, thus to effectively initiate a physiological action of defecation. Further, through a suction motor of the control device, gases inside a collection cylinder and a defecation opening are pumped out, and a decompression state is simultaneously formed to create a vacuum suction force to the anus, thus to suck out the excrement in the intestine connecting to the anus, thereby effectively helping defecation and avoiding constipation. Accordingly, with this non-invasive means for assistance of defecation, it provides a more safe and comfortable defecation function.一種便椅,其包含:一椅具基座、一便器支撐架、一便器座體以及一控制裝置,透過控制裝置之汲水馬達啟用,由噴水孔將清水噴出刺激肛門,另搭配按摩單元於脊隨穴位的按摩,有效引發使用者排便之生理活動,再透過控制裝置之吸引馬達將集筒以及排便開口內的氣體抽出,同時形成減壓狀態,進而對肛門產生真空吸引力,使連接肛門的腸內糞便能被吸出,有效幫助排便,避免便秘之情況產生,利用非侵入的方式達到助排便的效果,俾能提供更為更為安全、舒適之助排便功效。10‧‧‧椅具基座11‧‧‧承置部12‧‧‧組合部13‧‧‧外筒131‧‧‧卡嵌凸垣14‧‧‧扶手141‧‧‧遙控器20‧‧‧便器支撐架21‧‧‧排便開口22‧‧‧排尿開口23‧‧‧集筒24‧‧‧卡嵌凸肋25‧‧‧組合嵌件26‧‧‧蓋板30‧‧‧便器座體31‧‧‧排便通槽32‧‧‧排尿通槽321‧‧‧透孔311‧‧‧噴水孔312‧‧‧出水管33‧‧‧按摩單元34‧‧‧吸引管35‧‧‧汲水管36‧‧‧封蓋單元40‧‧‧控制裝置41‧‧‧負壓排氣管42‧‧‧切控開關43‧‧‧拔罐單元
