A slide mechanism includes a rear cover, a front cover slidably attached to the rear cover, a resilient member for creating an elastic force to make the front cover slide relative to the rear cover, and an operating module. The resilient member is connected between the rear cover and the front cover. The operating module includes a first latching member rotatably connected to the rear cover, a tension spring, an operating member, and a second latching member fixed to the front cover. The operating member is sleeved by the tension spring and includes a pressing portion at an end for pressing the first latching member to rotate. The second latching member is latched with the first latching member after the first latching member is rotated by an elastic force created by the tension spring and unlatched with the latching member after the latching member is rotated by the operating member.