To provide a time recorder network system capable of performing centralized processing of the information of a time recorder.

The time recorder 4 installed on a client 3 side has an attendance time information recording function and a communication function with the client 3, and the client has a function for linking personal information registered in the client or a server 2 with a time card number. The time recorder transmits time card number information to the client at the time of issuing a time card every month, and the client links the time card number information with the personal information. When the client reads the attendance time information stored in the time recorder, the attendance time information of each card number is linked with personal information corresponding to the number, the information is registered in a Web server, and the server side performs batch processing of the information.