Jain monasticism refers to the order of monks and nuns in the Jain community and can be divided into two major denominations: the Digambara and the Śvētāmbara. The monastic practices of the two major sects vary greatly, but the major principles of both are identical. Five mahāvratas (Great Vows), from Mahavira's teachings, are followed by all Jain ascetics of both the sects. Historians believe that a united Jain sangha (community) existed before 367 BCE, about 160 years after the moksha (liberation) of Mahavira. The community then gradually divided into the major denominations. However, no evidence indicate when the schism between the Digambaras and the Śvetāmbaras happened.

Digambaras use the word muṇi for male monastics and aryika for female monastics. Svetambara monks are also called nirgrantha (without bonds). Śvētāmbaras also use the word muṇi for male monastics but use the term sadhvis for female monastics.

Mahavira had 11 chief disciples, Indrabhuti Gautama being the most senior. Each chief disciple was made responsible for 250 to 500 monks. The Jain sangha (community) was led and administered by an organised system consisting of acharyas (leaders), upadhyayas (teachers), sthaviras (motivators of self-discipline), pravartakas (preachers) and ganis (leader of smaller groups of monks). Other titles included panyasa (canonical text experts), mahattara (female leader) and pravartini (female preacher).

The leadership of Jain order passed from Mahavira to Indrabhuti, who was succeeded by Sudharma (607–506 BCE). After 12 years, it was further passed on to Jambu (543–449 BCE), Prabhava (443–338 BCE) and Shayyambhava (377–315 BCE).

Historians believe that a united Jain community existed before 367 BCE, about 160 years after the moksha (liberation) of Mahavira. The community then gradually divided into two denominations: the Digambara and the Śvētāmbara. The Kalpa Sūtra describes Mahavira's asceticism in detail; from it and from the Ācārāṅga Sūtra, most of the Śvetāmbara ascetic practices (including the restraints and regulations) are derived:

The Venerable Ascetic Mahavira for a year and a month wore clothes; after that time he walked about naked, and accepted the alms in the hollow of his hand. For more than twelve years the Venerable Ascetic Mahavira neglected his body and abandoned the care of it; he with equanimity bore, underwent, and suffered all pleasant or unpleasant occurrences arising from divine powers, men, or animals.

— Kalpa Sūtra 117

Henceforth the Venerable Ascetic Mahavira was houseless, circumspect in his walking, circumspect in his speaking, circumspect in his begging, circumspect in his accepting (anything), in the carrying of his outfit and drinking vessel; circumspect in evacuating excrement, urine, saliva, mucus, and uncleanliness of the body; circumspect in his thoughts, circumspect in his words, circumspect in his acts; guarding his thoughts, guarding his words, guarding his acts, guarding his senses, guarding his chastity; without wrath, without pride, without deceit, without greed; calm, tranquil, composed, liberated, free from temptations, without egoism, without property; he had cut off all earthly ties, and was not stained by any worldliness: as water does not adhere to a copper vessel, or collyrium to mother of pearl (so sins found no place in him); his course was unobstructed like that of Life; like the firmament he wanted no support; like the wind he knew no obstacles; his heart was pure like the water (of rivers or tanks) in autumn; nothing could soil him like the leaf of a lotus; his senses were well protected like those of a tortoise; he was single and alone like the horn of a rhinoceros; he was free like a bird; he was always waking like the fabulous bird Bharundal, valorous like an elephant, strong like a bull, difficult to attack like a lion, steady and firm like Mount Mandara, deep like the ocean, mild like the moon, refulgent like the sun, pure like excellent gold'; like the earth he patiently bore everything; like a well-kindled fire he shone in his splendour.