  This paper is a further investigation of the generalized $N$-urn Ehrenfest
model introduced in \cite{Xue2020}. A moderate deviation principle from the
hydrodynamic limit of the model is derived. The proof of this main result
follows a routine procedure introduced in \cite{Kipnis1989}, where a
replacement lemma plays the key role. To prove the replacement lemma, the large
deviation principle of the model given in \cite{Xue2020} is utilized.
