The　formation　of　non-equilibrium　intermetallic　phases　during　solidification　significantly　deteriorates　the　mechanical　properties　of　Al-Mg-Si-Mn-Zr-Er　alloy,　but　homogenization　heat　treatment　can　effectively　reduce　these　residual　phases.　Therefore,　it　is　necessary　to　study　the　evolution　of　these　non-equilibrium　intermetallic　phases　during　different　homogenization　treatment.　In　this　study,　the　methods　we　used　are　OM,　SEM　in　combination　with　EDS,　XRD　and　TEM.　The　results　showed　that　non-equilibrium　intermetallic　phases　between　grains　are　mainly　Al0.5Fe3Si0.5,　Al0.7Fe3Si0.3　and　Al5Mn12Si7.　After　homogenization,　the　main　residual　phase　is　Al5Mn12Si7.　Compared　with　single　homogenization,　two-stage　homogenization　can　effectively　reduce　the　homogenization　time　and　is　good　for　the　precipitation　of　fined　Al-3(Er,　Zr)　particles.