  Hypernuclei are bound states of nuclei with one or more hyperons. Precise
measurements of hypernuclei properties and their production yields in heavy ion
collisions are crucial for the understanding of their production mechanisms.
The second phase of the Beam Energy Scan at RHIC (BES-II) offers us a great
opportunity to investigate collision energy and system size dependence of
hypernuclei production. In these proceedings, we present new measurements on
transverse momentum ($p_{T}$), rapidity (y), and centrality dependence of $\rm
{}^{3}_{\Lambda}H$ production yields in Au+Au collisions from $\sqrt{s_{NN}}$ =
3 to 7.7 GeV. These results are compared with phenomenological model
calculations, and physics implications on the hypernuclei production mechanism
are also discussed.
