Jackfruit trees are generally medium-sized, up to about 20 m in height, although there are up to 30 meters. Round cylindrical rod, until about 1 meter in diameter. Dense canopies and dense, broad and rounded when in the open. All parts of the plant issued a thick white sap when injured.
Single leaf, scattered, sessile 1-4 cm, rather thick leaves like leather, rigid, flat-brimmed, obovate to oblong (lengthwise), 3.5-12 × 5-25 cm, with a narrow base little by little, and short ends pointed or slightly tapered. Leaves ovate taper leverage, up to 8 cm long, easy to fall off and leave scars similar ring.
Plants monoecious jackfruit (monoecious), the inflorescence appears on the axillary shoots are short and specific, which grows on the trunks or branches of old. Male flowers in the head or spindle-shaped mace, 1-3 × 3-8 cm, with a fleshy ring at the base of a clear head, dark green, with yellowish pollen faint fragrance when ripe. Flowers jackfruit called Babal. Once past the ripe age, Babal will rot (overgrown with mold) and blackened during the still in the tree, before finally falling. Female flowers in a single nodule or in pairs, cylindrical or oval, dark green.

Fruit compound (syncarp) elongated spindle-shaped, often uneven, up to 100 cm in length, on the outer side of the soft form of short spines. 'Meat Fruit', which is actually the development of the flower tent, golden yellow when ripe, sweet-smelling fragrance that is hard, fleshy, sometimes filled with fluid (nectar) sweet. Seeds oblong oval to slightly flattened, 2-4 cm long, covered successively by a thin brown seed coat such as skin, endokarp the hard whitish clay, and soft eksokarp. Seed pieces are not symmetric.