Provided is a neutron capture therapy system which can improve a therapeutic efficacy. A neutron capture therapy system (1) in which a patient (S) is irradiated with a neutron beam (N) includes an irradiation chamber (3) which is surrounded by a shielding wall (W) blocking the neutron beam (N) from being radiated from the inside to the outside of the chamber and in which the patient (S) is arranged inside the chamber and is irradiated with the neutron beam (N), a neutron beam irradiation unit (8) that irradiates the inside of the irradiation chamber (3) with the neutron beam (N), a shielding door (D1) that closes a gate (3b) provided in the shielding wall (W), a medicine supply pump (17) that supplies a medicine to the patient (S), and a medicine supply tube (18) through which the medicine is introduced from the medicine supply pump (17) to the patient (S) arranged inside the irradiation chamber (3). The medicine supply pump (17) has a control unit (17a) which controls a supply quantity of the medicine and is arranged outside the irradiation chamber (3).本發明之課題，在於提供一種能夠提高治療效率之中子捕獲治療法系統。本發明之向患者(S)照射中子射線(N)之中子捕獲治療法系統(1)，具備：照射室(3)，係被將(N)從室內向室外輻射之中子射線予以阻斷之屏蔽壁(W)所包圍，用以將患者(S)配置於室內並照射中子射線(N)；中子射線照射部(8)，係用以向照射室(3)的室內照射中子射線(N)；屏蔽門(D1)，係用以關閉設置於屏蔽壁(W)之出入口(3b)；藥劑供給泵(17)，係用以向患者(S)供給藥劑；及藥劑供給管(18)，係用以將藥劑從藥劑供給泵(17)引導至配置於照射室(3)的室內之患者(S)。藥劑供給泵(17)係具有控制藥劑的供給量之控制部(17a)，並且配置於照射室(3)的室外。
