The present disclosure provides a negative current collector (10), a negative electrode plate (20), an electrochemical device, and an apparatus. The negative current collector (10) includes a support layer, and a conductive layer (102) disposed on at least one of two opposite surfaces of the support layer (101) in a thickness direction of the support layer; wherein the support layer (101) has a smaller density than the conductive layer (102); the conductive layer (102) has a thickness D1 satisfying 300 nm≤D1≤2 μm, preferably 500 nm≤D1≤1.5 μm; and when the negative current collector (10) has a tensile strain of 1.5%, the conductive layer (102) has a sheet resistance growth rate T satisfying T≤5%.