The present invention relates to a massage apparatus for a multifunctional bed, and more specifically, to a massage apparatus for a multifunctional bed which enables massage to be made with an appropriate strength by selectively ascending or descending a plurality of massage rods formed on top parts of eccentric cams in a predetermined distance at both sides while moving the eccentric cams to a predetermined length in forward and backward directions according to rotational angles of the eccentric cams. A massage apparatus for a multifunctional bed according to the present invention comprises: a massage part in which a plurality of massage rods (21) that are rotatably axially supported are arranged in a forward-and-backward length direction of a massage housing (10) such that a pair of the massage rods (21) are spaced apart from each other in a predetermined distance a lifting part which supports the massage part such that the respective pair of massage rods (21) of the massage part are capable of being vertically ascended or descended to a predetermined height from both sides of the massage housing (10) a cam driving part which ascends or descends the pair of massage rods (21) installed on top parts of a pair of cams (43) to a predetermined height by being in contact with the pair of the cams (43), the pair of cams (43) being axially fixed to the driving shaft (44) by rotation angle of a driving shaft (44) rotated by a first motor (45) on a moving plate (42), the moving plate (42) being installed along rails formed at both sides of the massage housing (10) such that the moving plate (42) is movable in forward and backward directions a moving part which enables the moving plate (42) of the cam driving part to be reciprocated in forward and backward directions of the massage housing (10). Therefore, a massage apparatus for a multifunctional bed according to the present invention not only a little more simplifies an operational structure of the massage apparatus, but a