The invention provides a medical bed realizing attaching to the body, relating to the field of medical apparatus and instruments. The medical bed comprises a bed body, wherein a plurality of support devices are arranged inside the bed body, and the supporting effect can be realized through air inflation or deflation for the support devices; the bed body is provided with a mattress, and the mattress has good elasticity and breathability. The invention provides the medical bed realizing attaching to the body, which can support the head, the cervical vertebra, the lumbar vertebra and the leg joints of the human body, so that a patient feels more comfortable during rest or sleep, meanwhile, the medical bed is provided with the mattress, so that a good breathing effect can be achieved when themattress attaches to the human body, and moreover, the mattress can extend along with the support of the bed surface, so that the overall appearance is not influenced.