A nurse call system, comprising: a nurse call master unit which includes a first display part; a patient information memory unit which stores patient information containing at least names of patients, infection information, medication information and person-in-charge information representing nurses each in charge of one or more of the patients; a working information memory unit which stores working information of the nurses for each day and each working time zone; a display control unit which can display a plurality of the patients and the nurses each in charge of one or more of the plurality of patients in a next or succeeding working time zone simultaneously on the first display part, in a display mode of associating each of the plurality of patients with one of the nurses, based on the patient information and the working information; and a layout information memory unit which stores layout information of individual hospital rooms in a predetermined area of a hospital, wherein the patient information further contains hospital room information of the individual patients, and wherein the display control unit can display a layout screen indicating a layout of the individual hospital rooms in the predetermined area of the hospital on the first display part based on the layout information, and the display control unit can also display the plurality of patients, the nurses each in charge of one or more of the plurality of patients and the hospital rooms for the plurality of patients in the next or succeeding working time zone simultaneously over the layout screen on the first display part, in a display mode of associating each of the plurality of patients with one of the nurses and one of the hospital rooms, based on the patient information and the working information, and wherein in the display mode, the same hatching pattern or color is applied to the inside of an indication frame surrounding the name of the patient and to the inside of an indication frame surrounding the number of the patients assigned to the nurse; a nurse call slave unit which communicates with said nurse call master unit for patients originating a nurse call, wherein said display control unit displays patient information of patients originating nurse calls for the nurse to quickly deal with the patient, said display control unit also displaying the necessity of vital signs checks. a nurse call master unit which includes a first display part; a patient information memory unit which stores patient information containing at least names of patients, infection information, medication information and person-in-charge information representing nurses each in charge of one or more of the patients; a working information memory unit which stores working information of the nurses for each day and each working time zone; a display control unit which can display a plurality of the patients and the nurses each in charge of one or more of the plurality of patients in a next or succeeding working time zone simultaneously on the first display part, in a display mode of associating each of the plurality of patients with one of the nurses, based on the patient information and the working information; and a layout information memory unit which stores layout information of individual hospital rooms in a predetermined area of a hospital, wherein the patient information further contains hospital room information of the individual patients, and wherein the display control unit can display a layout screen indicating a layout of the individual hospital rooms in the predetermined area of the hospital on the first display part based on the layout information, and the display control unit can also display the plurality of patients, the nurses each in charge of one or more of the plurality of patients and the hospital rooms for the plurality of patients in the next or succeeding working time zone simultaneously over the layout screen on the first display part, in a display mode of associating each of the plurality of patients with one of the nurses and one of the hospital rooms, based on the patient information and the working information, and wherein in the display mode, the same hatching pattern or color is applied to the inside of an indication frame surrounding the name of the patient and to the inside of an indication frame surrounding the number of the patients assigned to the nurse; a nurse call slave unit which communicates with said nurse call master unit for patients originating a nurse call, wherein said display control unit displays patient information of patients originating nurse calls for the nurse to quickly deal with the patient, said display control unit also displaying the necessity of vital signs checks.