Composition, surface morphology and phase structure of Sn-Ag-Cu ternary alloys electrodeposited from pyrophosphate-Iodide bath under the galvanostatic conditions were examined. Contents of Ag and Cu in the deposits decreased with increasing current density. There was correlations between surface morphology of the deposits and their compositions. Composition-phase diagram of the electrodeposits corresponded to Sn-Ag-Cu ternary alloy phase diagram in the composition range with higher content of Sn.