The invention discloses an RFID technology-based food detection device with both uncooked food and cooked food, the RFID technology-based food detection device comprises a work box, a sampling barrel and a fresh-keeping groove, the sampling barrel is arranged in the work box, and the fresh-keeping groove is arranged at the bottom of the surface of the work box; a working plate is arranged at the top of one side of the working box, and a light-transmitting plate is arranged in the working plate; and an observation window is arranged at the top of the surface of the working box. Through the arrangement of the light source assembly and the light-transmitting plate, when a worker needs to detect the degree of cooking of food, the observation window, the supporting plate and the light source assembly are matched to work, the light source assembly is located under the light-transmitting plate, and after the device is connected to a power source, the worker can place the food on the surface of the light-transmitting plate, the light source assembly can irradiate a light source to the light-transmitting plate, if meat food is placed in the device, a worker can directly observe the meat food through the observation window so as to judge whether the food is cooked or not, then the device has certain functionality, and then the working efficiency is improved.