A hemostatic forceps for an endoscope has a support section for supporting the pair of clamp pieces and so that they can rotate and change their distal parts direction. The pair of clamp pieces and are formed in tapered shape so that widths of the pair of clamp pieces gradually decrease in a direction from a side of the support section to a side of the distal parts. Length of the pair of clamp pieces at arbitrary location along the direction from a side of the support section to the distal sides, times the width of the pair of clamp pieces at the same location, is set to be substantially constant.