An egg shaped colonoscopy and the marching control method is disclosed. The egg shaped colonoscopy includes: an egg shaped case, which has a first end and a second end, the first end is transparent； a first camera module, which is equipped on the first end to illuminate and make video； vibrating motor, which makes vibration for the egg shaped case； control module, which receives a control data to control the first camera module to make video then transmits to the computer, and controls the vibrating motor to vibrate； wire set, which has a air opening. The wire set is fixed on the second end and covers by a insulated cover, the wire set includes at least two wires and a hose airway to fulfill the power transmission and air transportation.一種蛋型大腸鏡及行進控制方法，包含：一蛋型殼體，具有一第一端及一第二端，第一端由一透明材料製作而成；第一攝影模組，裝置於第一端，用以進行照明與攝影；振動馬達，裝置於該蛋型殼體中，用以使蛋型殼體產生振動；控制模組，接收控制指令以控制第一攝影模組進行影片拍攝與傳輸，並控制振動馬達之振動；導線組，包含一氣道開口。導線組固定於蛋型殼體之第二端側，由一導線外皮包覆至少兩導線與一軟管氣道構成，該至少兩導線用以傳輸電力至控制模組，軟管氣道用以將外部產生的一氣體經由氣道開口送至大腸中。
