The present invention provides a hair testing device and a hair testing system. The hair testing device includes a data acquisition part and a transmitting part. The data acquisition part is configured to acquire hair-related data and send the acquired data to the transmitting part. The transmitting part is configured to receive the acquired data and transmit the acquired data to a data processing device which is capable of processing data. The hair testing device further includes a fixing part for fixing to hair, and the data acquisition part and the transmitting part are both located on the fixing part. The hair testing device provided by the present invention is capable of automatically acquiring hair-related data, and sending the acquired data to the data processing device for processing, so as to achieve automatic testing of hair quality.
