The invention discloses a diagnosis and treatment bed for a department of cardiology. The diagnosis and treatment bed comprises a bed body, a backrest and bed legs, the bed body comprises a lower board and vertical boards, the lower board is arranged on the bed legs, the vertical boards are arranged at the upper edges of the lower board, and the backrest is arranged on the vertical board on one side of a head of the bed. The diagnosis and treatment bed is characterized by further comprising a flexible mattress, an X screw plate, an X screw, a Y screw seat, an X motor plate, an X motor, a Y motor seat, a Y screw and a massage seat. The flexible mattress is arranged on the vertical boards; the X motor is fixed to the X motor plate, and a motor shaft of the X motor is connected with the X screw through a coupler. The screws are driven by the motors to drive the massage seat to move under the flexible mattress, the speeds of the motors can be selected according to requirements of a patient, the motors and the screws are low in operating noise, and further, by the soundproof effect of the flexible mattress and quilts, the patient can have massage without affecting rest. In addition, byadoption of the X and Y screws, motion positions of the massage seat can cover the whole flexible mattress, so that massage of the whole body including waist, back, buttocks, legs and the like of thepatient is guaranteed.