The invention discloses an integrated system and a method for detecting temperature and partial discharge of a power equipment. The method comprises the following steps of: scanning FBG multiple timesby a tunable narrow-band laser to obtain an average reflection spectrum of the FBG, and obtain temperature information of the equipment to be tested by the relationship between center wavelength of the average reflection spectrum and the temperature; setting the wavelength value [lambda] corresponding to the maximum linear slope of the reflection spectrum of the FBG as output wavelength ofthe tunable narrowband laser to accurately detect whether partial discharge occurs, immediately after the temperature detection. According to the method for detecting the temperature and partial discharge of the power equipment, the temperature and the partial discharge of the equipment can be detected by the same FBG detection system, the detection efficiency is greatly improved, and the cost ofthe detection is saved.