Citadel-Shaped of Heraldry : Reminiscent of Spanish times.

Color Red, White and Blue: Supremacy of Republic.

Azure Blue: Philippines skies as sphere of liberty and freedom.

Green Background: Fertility of the soil in the province.

Rippling Waves: Three (3) Breat bodies of water lacing its shores, the Pacific Ocean, Davao Gulf and Celebes Sea.

Fish at center: Tuna fish,to show rich sea resources of Province.