For a simple graph
G
with a vertex set
V
G
and an edge set
E
G
, a labeling
f
:
V
G
∪
E
G
⟶
1,2
,
⋯
,
k
is called a vertex irregular total
k
−
labeling
of
G
if for any two different vertices
x
and
y
in
V
G
we have
w
t
x
≠
w
t
y
where
w
t
x
=
f
x
+
∑
u
∈
V
G
f
x
u
.
The smallest positive integer
k
such that
G
has a vertex irregular total
k
−
labeling
is called the total vertex irregularity strength of
G
, denoted by
tvs
G
. The lower bound of
tvs
G
for any graph
G
have been found by Baca et. al. In this paper, we determined the exact value of the total vertex irregularity strength of the hexagonal cluster graph on
n
cluster for
n
≥
2
. Moreover, we show that the total vertex irregularity strength of the hexagonal cluster graph on
n
cluster is
3
n
2
+
1
/
2
.