  We study the structural properties like the gravitational mass, radius and
tidal deformability of dark matter (DM) admixed strange quark stars (SQSs). For
the purpose we consider the vector MIT Bag model to describe the strange quark
matter (SQM) and investigate the possible presence of accreted DM in the SQSs
consequently forming DM admixed SQSs. We introduce feeble interaction between
SQM and the accreted fermionic DM via a vector dark boson mediator. Considering
the present literature, in the context of possible presence of DM in SQSs, this
work is the first to consider interaction between DM and SQM in the DM admixed
SQSs. The mass of the DM fermion ($m_{\chi}$) and the vector mediator
($m_{\xi}$) and the coupling ($y_{\xi}$) between them are determined in
accordance with the constraint from Bullet cluster and the present day relic
abundance, respectively. We find that the presence of DM reduces both the mass
and radius of the star compared to the no-DM case. The massive the DM fermion,
the lower the values of maximum mass and radius of the DM admixed SQSs. For the
chosen values of $m_{\chi}$ and corresponding values of $m_{\xi}$ and
$y_{\xi}$, the computed structural properties of the DM admixed SQSs satisfy
all the various present day astrophysical constraints.We obtain massive DM
admixed SQSs configurations consistent with the GW190814 observational data.
Hence the secondary compact object associated with this event may be a DM
admixed SQS.
