Patient risk pre-warning system and pre-warning method

The invention discloses a patient risk pre-warning system and pre-warning method. The system comprises a handheld device, a multifunctional sickbed, a nurse station pre-warning caution management platform, a doctor station pre-warning caution management platform and a data center platform, wherein a first communication module, an electronic tag card reader, a code scanner, an information input module and a first controller are arranged on the handheld device; the multifunctional sickbed comprises a bed body, an electronic tag, a second communication module, a data input port, a pressure sensor and a second controller; the electronic tag, the second communication module, the data input port, the pressure sensor and the second controller are arranged on the bed body; the doctor station pre-warning caution management platform comprises a third controller, a third communication module and a first information prompter; the doctor station pre-warning caution management platform comprises a fourth controller, a four