Abstract: For providing the theoretical basis for the further improvement and effective utilization of four African maize variety resources, the combining ability and breeding potentiality of four maize landraces from Africa which could pollinate and seed set in Sichuan Province were evaluated by using the NCⅡ genetic mating design with five Chinese elite maize inbred lines. The results showed that the twenty top-crosses with resistance to disease and stalk breaking could adapt to Sichuan ecological conditions in plant height, ear height and growing period, and FDP1 from Guinea-Bissau which had higher general combining ability (GCA) and possessed the highest yield and relative heterosis with ‘Dan340’ among twenty top - crosses was valuable in maize breeding.