To provide a device for adjusting an operating table, in which, in fixing a bed to a column, the posture as a whole body of the bed and the form of the bed can be adjusted in various methods, and a patient who undergoes an operation can be supported in the optimum way.

This device 24 is for adjusting the operating table 10 having a column 12 to which the adjustable bed 16 is detachably fixed. The device is provided with an operating tool 26 for inputting an adjusting command for adjusting the operating table 10. The device 24 is provided with means 20 and 28 for directly conveying the adjusting command from the operating tool 26 toward the bed 16.