Shield: Derived from the Provincial Seal of Abra where the town is located.
Circle: Divided into 8 parts representing the barangays that comprise the Municipality.
Three Stars: Represent the 3 ethnic groups composing the populace of the Municipality: the Ilocanos, Igorots, and Tinguians.
Ricefields: Stand for the major product of the Municipality.
Mountains: Represent the mountainous towns within the Cordillera Ranges.
Three Trees: Represent the 3 major trees abounding the town's forests.
Cattle Head: Depicts Luba as a cattle-producing Municipality.