The present invention is directed to providing a stoma base cutter capable of reducing the damage rate of a base patch. The technical means is characterized in that: the ostomy base cutter comprises a holding head, a first leg pivoted to the holding head, a first pivoting to the holding head and adjacent to the first leg a two-legged, one-axis anti-slip pad disposed at the free end of the first leg, and a cutting device disposed at the free end of the second leg； the gripping head has a first foot and a second leg, which can control a positioning device for opening between a foot and a second leg； the cutting device has a locking unit disposed at a free end of the second leg, a blade inserted at a free end of the locking unit, and a set of The sleeve at the free end of the two feet and at least the blade.本新型在於提供本新型目的在於提供一種能降低底座貼片損壞率的造口底座切割器。其技術手段：為其特徵在於：所述造口底座切割器包括有握持頭、一樞接於握持頭的第一腳、一樞接於握持頭且與第一腳相鄰的第二腳、一軸設於第一腳自由端處的止滑墊、以及一設於第二腳自由端處的切割裝置；握持頭具有一設於第一腳與第二腳間，能控制第一腳與第二腳兩者間之開度的定位裝置；切割裝置具有一設於第二腳自由端處的鎖定單元、一插設於鎖定單元自由端處的刀片、及一套設於第二腳自由端處並至少將刀片所包圍的套體。
