  We propose a supersymmetric gradient flow in ${\cal N}=1$ SQCD in four
dimensions. The flow equation is derived in the superfield formalism and is
also given for component fields of the Wess-Zumino gauge in a gauge covariant
manner. We find that the flow for the component fields is supersymmetric in a
sense that the flow time derivative and any supersymmetry transformation
commute with each other up to a gauge transformation.
