The invention discloses a system for monitoring multiple servers. The system comprises a plurality of data collecting clients, a signal filter processor and an alarm processor, wherein the data collecting clients are disposed in each corresponding monitored server and applicable to monitoring and transmitting running data of the monitored servers; the signal filter processor is applicable to receiving the running data transmitted by the data collecting clients and filtering the running data to be alarmed according to the prestored running data filter policy; and the alarm processor is used for receiving the filtered running data to be alarmed of the signal filter processor and sending an alarm according to the prestored alarm policy. The invention further discloses a method for monitoring the multiple servers. The system and the method for monitoring multiple servers are convenient for monitoring large-size servers in different places, and can be extended to adapt to large-scale extension of the monitored servers with increasing of the number of the monitored servers.