Abstract: There is provided an apparatus for predicting hypotension of a subject. The apparatus comprises a memory configured to store one or more instructions and a pre-trained hypotension prediction model; and a processor configured to execute the one or more instructions stored in the memory, wherein the instructions, when executed by the processor, cause the processor to: determine an arterial blood pressure data of the subject, input the arterial blood pressure data of the subject into the hypotension prediction model, and determine whether the subject has hypotension using an output result of the hypotension prediction model.