A medical monitoring system comprising: a plurality of bedside monitors (3, 3a-3j) each configured to display biological information of respective patients and bedside monitors are connected to each other via a network; and a portable terminal configured to wirelessly communicate with the plurality of bedside monitors, wherein each of the bedside monitors is configured to be inputted with biological information of the respective patients, each of the bedside monitors is configured to transmit alarm information when a value of the respective biological information is larger or smaller than a preset threshold, the portable terminal includes: a receiving unit configured to receive the alarm information from each of the bedside monitors; and a transmitting unit configured to transmit by short-range wireless transmission the received alarm information to a designated receiving device, wherein the designated receiving device is one of the bedside monitors that is in the vicinity of the portable terminal and wherein the receiving unit of the portable terminal is configured to receive the alarm information in case where one of the plurality of bedside monitors transmits the alarm information, and the transmitting unit of the portable terminal is configured to transmit by short-range wireless transmission the received alarm information to the designated receiving device, and when the designated receiving device receives the alarm information from the portable terminal, the designated receiving device is configured to receive the biological information of the patient corresponding to the one of the plurality of bedside monitors through the network and to display the biological information of the corresponding patient on the designated receiving device. a plurality of bedside monitors (3, 3a-3j) each configured to display biological information of respective patients and bedside monitors are connected to each other via a network; and a portable terminal configured to wirelessly communicate with the plurality of bedside monitors, wherein each of the bedside monitors is configured to be inputted with biological information of the respective patients, each of the bedside monitors is configured to transmit alarm information when a value of the respective biological information is larger or smaller than a preset threshold, the portable terminal includes: a receiving unit configured to receive the alarm information from each of the bedside monitors; and a transmitting unit configured to transmit by short-range wireless transmission the received alarm information to a designated receiving device, wherein the designated receiving device is one of the bedside monitors that is in the vicinity of the portable terminal and wherein the receiving unit of the portable terminal is configured to receive the alarm information in case where one of the plurality of bedside monitors transmits the alarm information, and the transmitting unit of the portable terminal is configured to transmit by short-range wireless transmission the received alarm information to the designated receiving device, and when the designated receiving device receives the alarm information from the portable terminal, the designated receiving device is configured to receive the biological information of the patient corresponding to the one of the plurality of bedside monitors through the network and to display the biological information of the corresponding patient on the designated receiving device.