A discrete bioelectrical impedance identification device, comprising a control module (1) and a detection module (2), wherein the control module (1) comprises a control shell (20) and a control processing circuit (21) provided inside the control shell (20)； the control shell (20) is provided with conducting strips (201) which are partially exposed out of the control shell (20)； the conducting strips (201) are electrically connected to the control processing circuit (21), wherein the detection module (2) comprises a detection shell (23), a probe (231) embedded in one end of the detection shell (23), a power supply (232) embedded in the other end of the detection shell (23), and a conducting needle group (233) partially exposed out of the shell； the control shell (20) is detachably connected to the detection shell (23)； when the control shell (20) is firmly connected to the detection shell (23), the conducting needle group (233) abuts against the conducting strips (201)； and when the control shell (20) is separated from the detection shell (23), the conducting needle group (233) is separated from the conducting strips (201). The device can improve the utilization rate of the product and reduce the use cost.
