The present invention discloses a network information searching method, which includes: firstly, the keyword input by the user is received; secondly, the personal open information in a personal information database of the network is indexed, so as to index out the personal open information matched with the keyword; thirdly, the indexed out personal open information is displayed. The present invention also discloses a network information searching system, containing an information input module used for inputting keywords; a database used for storing personal information in the network; and a searching engine used for receiving the keyword input by the information input module, the personal open information matched with the keyword is indexed out from the personal open information in the database; as well as a display module used for displaying the indexed out personal open information. The utilization of the present invention can realize that the personal open information of network user which is relative to the keyword can be searched out directly through the keyword, so as to improve the pertinence of the searched target to improve the indexing efficiency.