The present disclosure provides a battery detection circuit and a battery management system. The battery detection circuit includes a positive relay (Gl), a negative relay (G2), a first positive sampling unit (F1), a first negative sampling unit (F2), a second positive sampling unit (F3), a second negative sampling unit (F4), and a reference voltage terminal (GND), wherein: all of the first positive sampling unit (F1), the first negative sampling unit (F2), the second positive sampling unit (F3), the second negative sampling unit (F4) and a power battery pack to be detected are connected to the reference voltage terminal (GND). With the battery detection circuit and the battery management system of the present disclosure, both the cost of the battery detection circuit and the complexity of the structure of the battery detection circuit can be reduced. [Fig. 1]
展开▼
