Human body’s main organ of balance is located in :

The human body's main organ of balance is the vestibular system, which is located in the inner part of the ear [t2][t3]. While the ear is primarily known for hearing, its inner portion contains the vestibular labyrinth, consisting of three semicircular canals and two otolith organs (the utricle and saccule) [t1][t2]. These structures detect head movement, position, and gravitational changes by using fluid called endolymph and specialized sensory hair cells [t3][t6]. This sensory information is transmitted via the vestibulocochlear nerve to the brain [t4]. Although the cerebellum in the hind-brain is responsible for processing these signals to maintain posture and coordinate voluntary actions, the primary sensory receptors that detect balance are situated within the inner ear [c2][t5]. The middle ear, by contrast, contains ossicles for sound conduction and is not the site of the balance organs [t7].

Sources

1. [1] https://www.ncbi.nlm.nih.gov/books/NBK279394/
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 6: Control and Coordination > 6.1.2 Human Brain > p. 104