phosphine ligands, a Pd-catalyzed asymmetric double hydroxycarbonylation of terminal alkynes to chiralsuccinicacids was achieved in a one-pot manner. The alkyne carbonylation was dictated by the achiral monophosphine to afford branched acrylic acids, while the resulting intermediates further underwent Pd/chiral bisphosphine-catalyzed enantioselective hydroxycarbonylation.