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We have for positive integers $n$, $k$ and finite field $\mathbb{F}_q$,$c(n,k,q)$, as the number of simultaneous similarity classes of $k$-tuples ofcommuting $n\times n$ matrices over the $\mathbb{F}_q$. In this paper, it hasbeen shown that $c(n,k,q)$ as a function of $k$ for fixed $n$ and $q$ isasymptotically $q^{m(n)k}$, where $m(n) = \left[\frac{n^2}{4}\right] + 1$,which is the dimension of the maximal commutative subalgebra of$M_n(\mathbb{F}_q)$ (the algebra of $n\times n$ matrices over $\mathbb{F}_q$).

Asymptotic of Number of Similarity Classes of Commuting Tuples