  In this paper, we consider the correspondence between the tachyon dark energy
model and the Tsallis holographic dark energy scenario in an FRW universe.We
demonstrate the Tsallis holographic description of tachyon dark energy in an
FRW universe and reconstruct the potential and basic results of the dynamics of
the scalar field which describe the tachyon cosmology. In a flat universe, in
the tachyon model of Tsallis holographic dark energy, independent of the
existence of interaction between dark energy and matter or not, \dot{T}^2 must
always be zero. Therefore, the equation of state {\omega}_D is always -1 in
such a flat universe. For a non-flat universe, \dot{T}^2 cannot be zero so that
{\omega}_D=-1 which cannot be used to explain the origin of the cosmological
constant. \dot{T}^2 monotonically decreases with the increase in \cos(R_h/a)
and \cosh(R_h/a) for different {\delta}'s. In particular, for an open universe,
\dot{T}^2 is always larger than zero, while for a closed universe, \dot{T}^2 is
always smaller than zerowhich is physically invalid. In addition, we conclude
that with the increase in \cos(R_h/a) and \cosh(R_h/a), \dot{T}^2 always
decreases monotonically irrespective of the value of b^2.
