A server rack system includes a first network switch, a second network switch, servers, a rack internal device, and an integrated management module (IMM). Management network ports of baseboard management controllers (BMCs) of the servers are connected to the first network switch. A management network port of the rack internal device is connected to the second network switch. A first management network port and a second management network port of the IMM are respectively connected to the first network switch and the second network switch. The IMM communicates with the BMCs of the servers through the first network switch, so as to obtain operation states of the servers, or control operations of the servers. The IMM communicates with the rack internal device through the second network switch, so as to obtain an operation state of the rack internal device, or control an operation of the rack internal device.