The monochromatic 5.49 MeV solar axions induced by the isovector coupling g3aN can be searched for at the dark matter direct detection experiments. In this paper we estimate the prospects of the relevant axion couplings for axion mass ma< 1 MeV with xenon targets. Given the axion-electron coupling gae
Nearby in the stack
, the signal is dominated by the axion-induced
e+e−
pair production whose cross section is largely enhanced when the axion mass approaches twice of the electron mass. Furthermore, the cross section depends on the atomic number squared
Z2
. This allows the next-generation xenon experiments to surpass the current Borexino constraints and provide sensitivities competitive with those of the large neutrino detectors such as JUNO and Hyper-Kamiokande. With an exposure of 200 and 1000 ton
⋅
yr, the couplings
∣g3aNgae∣
can be probed down to
1.59×10−14
and
7.12×10−15
at 90% C.L., respectively. If the axion couples to photons, the projected sensitivities on