We report on the radio quiet quasar SDSS J2125-0813 which obviously emits optical FeII emission lines and double-peaked broad Balmer emission lines .
Using the accretion disk model for double-peaked broad low-ionization emission lines , we reproduce the composite line spectra at the optical band between 4100 \AA and 5600 \AA .
Broad FeII emission lines can be fit simultaneously with the broad H \beta and MgI lines , such that all broad lines have an elliptical disk profile with the same disk parameters .
This results indicates that the optical FeII emission lines originate from the accretion disk near the central black hole which produces the double-peaked broad Balmer emission lines .
Furthermore , we find that the object has dimensionless accretion rate \dot { m } \sim 0.4 - 0.6 which is much larger than accretion rate for ADAF mode , and that the energy budget of the accretion disk is enough to power the double-peaked broad Balmer emission lines .