The invention relates to a medical instrument and particularly provides an electric coagulation hemostat. The electric coagulation hemostat comprises a shell, a hemostasis probe is arranged on one side of the shell, a sweat-absorbent sleeve sleeves the shell and comprises a sweat-absorbent sticker, a sweat-absorbent tube and a sweat-absorbent chamber, an illuminant is fixed to one side of the sweat-absorbent sleeve and comprises a shell and an LED lamp, the shell is provided with a sliding groove comprising clamping edges on two sides, saw-shaped teeth are formed on the brims of the clamping edges, an elastomer, a supporting piece and the LED lamp are arranged in the sliding groove, a press switch is fixed on the surface of the LED lamp and comprises a first press block, a second press block and a third press block which are connected fixedly sequentially, the first press block is disposed in the sliding groove, the width of the second press block is smaller than the minimum distance between the clamping edges, and the third press block exposes over the sliding groove. The electric coagulation hemostat has the advantages of simple structure, convenience in operation, less proneness to slipping, brightness, high safety and capabilities of absorbing sweat and avoiding surgery misoperation.