  We present a high-sensitivity ($1\sigma<1.6~\mathrm{mJy~beam^{-1}}$)
continuum observation in a 343 arcmin$^2$ area of the northeast region in the
Small Magellanic Cloud at a wavelength of 1.1 mm, conducted using the AzTEC
instrument on the ASTE telescope. In the observed region, we identified 20
objects by contouring $10\sigma$ emission. Through spectral energy distribution
(SED) analysis using 1.1 mm, $Herschel$, and $Spitzer$ data, we estimated the
gas masses of $5\times 10^3-7\times 10^4~\mathrm{M_\odot}$, assuming a
gas-to-dust ratio of 1000. Dust temperature and the index of emissivity were
also estimated as $18-33$ K and $0.9-1.9$, respectively, which are consistent
with previous low resolution studies. The relation between dust temperature and
the index of emissivity shows a weak negative linear correlation. We also
investigated five CO-detected dust-selected clouds in detail. The total gas
masses were comparable to those estimated from the Mopra CO data, indicating
that the assumed gas-to-dust ratio of 1000 and the $X_\mathrm{CO}$ factor of
$1\times10^{21}~\mathrm{cm^{-2}~(K~km~s^{-1})^{-1}}$, with uncertainties of a
factor of 2, are reliable for the estimation of the gas masses of molecular or
dust-selected clouds. Dust column density showed good spatial correlation with
CO emission, except for an object that associates with bright young stellar
objects. The $8~\mathrm{\mu m}$ filamentary and clumpy structures also showed
similar spatial distribution with the CO emission and dust column density,
supporting the fact that polycyclic aromatic hydrocarbon emissions arise from
the surfaces of dense gas and dust clouds.
