The utility model discloses a wireless temperature measuring system for intelligent substation, it includes temperature measurement terminal, wireless data receiving terminal and host computer, the temperature measurement terminal is passed through zigbee wireless network and is linked to each other with wireless data receiving terminal, wireless data receiving terminal passes through the 3G4G network and links to each other with the host computer, the temperature measurement terminal sets up on the secondary equipment's of transformer substation shell, wireless data receiving terminal sets up in transformer substation's master -control room, and the temperature measurement terminal will be gathered temperature data and sent for wireless data receiving terminal, and wireless data receiving terminal receives temperature data, handle, save, show, fix a position to send for the host computer. The utility model discloses can effectively improve the detection of secondary equipment temperature in the intelligent substation, take notes and the work of uploading, improve investigation ability and prevention ability to equipment high temperature hidden danger, promote electrical equipment's ride quality, ensure the safety of electric wire netting.