Button apparatus and terminal employing same

The invention provides a button apparatus and a terminal employing same. The button apparatus comprises a first sensor, a metal ring sleeved on the periphery of a first sensor, a supporting assembly supporting the first sensor and the metal ring, a sealing member arranged between the supporting assembly and the first sensor bonded with the sealing member, and a switch installed on the supporting assembly and contacted with the bottom of the first sensor. The sealing member and the supporting assembly improve the sealing performance of the button apparatus, and the sealing effect is ensured even the button apparatus is immersed under water in a certain depth and for a certain time. During a use process, the internal components of the button apparatus may not collapse due to excessive force or long-time use. balance of the button apparatus and normal reset of a switch can be ensured.