The invention discloses a multi-mode care bed BCI system based on a cloud platform. The multi-mode care bed BCI system comprises a picture display unit, a data acquisition and transmission unit, a data receiving and processing unit, and a care bed status and environment information acquisition and transmission unit. The multi-mode care bed BCI system has the following advantages: (1) it uses two TGAM modules to collect brain wave signals, does not have excessive electrodes, and is convenient to use; (2) it has a variety of signal acquisition modes, integrates visual inspiration, movement imagination and voice recognition in one, achieves multi-mode control on a care bed, has a wide range of applications and good stability; (3) as brainwave signals are processed by an ARM processor and theARM processor uses a large number of registers, the brainwave signal processing classification is speeded up and at the same time size of the care bed BCI system is greatly reduced; (4) as the cloud platform is used to store data, the status information of the care bed and the environmental information around the care bed can be uploaded to the cloud platform in real time, which makes it convenient for users to view the information and enables family members to monitor the patient in real time.