The utility model relates to a glass kiln plug-in type temperature measuring device which comprises a horizontal temperature measuring hole formed in a refractory brick on the side face of a kiln anda thermocouple, the thermocouple penetrates through the temperature measuring hole to measure the temperature of molten glass, and a ceramic sleeve and a metal sleeve are sequentially arranged on a thermocouple temperature measuring head in a sleeved mode from inside to outside. The metal sleeve is inserted into molten glass of a kiln from the temperature measuring hole, the ceramic sleeve is coaxially inserted into the metal sleeve, and the space between the ceramic sleeve and the metal sleeve is tightly filled with filler. And the head parts of the metal sleeve and the ceramic sleeve are sealed, and the tail parts are opened. A temperature measuring cylinder formed by superposing a molybdenum sleeve and a zirconium corundum ceramic sleeve is arranged on a kiln, so that the non-contact measurement of the internal temperature of molten glass of a thermocouple is realized. The problems that the service life of the thermocouple is shortened and the thermocouple is difficult to replace due to direct contact with molten glass are avoided. According to the technical scheme, temperature measurement is accurate, the service life of the thermocouple is effectively prolonged, and replacement of the thermocouple is facilitated.