PROBLEM TO BE SOLVED: To provide a bed device capable of facilitating load detection.SOLUTION: A bed device 1 is used in a medical institution and a care facility or used for home care and home recuperation, and includes: a lower frame 10 an upper frame 30 a lifting device 20 arranged in the lower frame so as to lift or lower the upper frame and a back bottom 42, a waist bottom 44, a knee bottom 46, and a leg bottom 48 that are arranged on the upper frame. The bottoms can perform a back lifting motion and a leg lowering motion by the operations of a first actuator and a link mechanism. The lifting device lifts/lowers the upper frame via the link mechanism connected to a second actuator by operating the second actuator. An announcement is issued in a case where the upper frame is not lowered to a lower limit when load detection means 50 for detecting the value of a load to be applied to the bed device is detecting or to detect the load value.SELECTED DRAWING: Figure 2
