The invention provides a head-wearing dry eye detection device which comprises an image collector, a DSP image processor, an ARM processor, an illumination unit, a touch display screen and a fixing unit. The ARM processor is used for displaying detection item options through the touch display screen, judging a detection item selected by a user according to touch information, generating an image collecting command according to the detection item selected by the user and sending the image collecting command to the image collector; the image collector is used for collecting an image according to the image collecting command and sending the collected image to the DSP image processor; the DSP image processor is used for performing dry eye detection treatment according to the image and sending detection result information to the ARM processor; the ARM processor is used for displaying the detection result information through the touch display screen; the fixing unit is used for fixing the device to the head of a patient. The device is high in integration level, good in portability and easy to operate.