The invention discloses a 
microwave oven capable of being heated to a fixed temperature. The 
microwave oven comprises a shell, a heating space and a heating disc arranged in the shell, a furnace door for sealing the heating space, a controller for controlling the operation of the 
microwave oven, and a control panel arranged on the front surface of the shell. The 
microwave oven capable of being heated to the fixed temperature is characterized by comprising a 
probe type temperature sensor, wherein the 
probe type temperature sensor is arranged in the heating space and comprises a piercing part which pierces into food, a 
temperature sensing element which is positioned in the piercing part, and a 
signal line which is connected to the controller and transmits a temperature 
signal to the controller. According to the 
microwave oven capable of being heated to the fixed temperature, the piercing part of the 
probe type temperature sensor is utilized and can be inserted into the food for acquiring the temperature inside the food, so that whether the food is heated thoroughly can be accurately known, and excessive heating or 
insufficient heating is avoided to a certain degree. According to the 
microwave oven, the problem that the conventional microwave oven difficultly knows the food temperature is feasibly solved, the structure principle is simple and is applied to a microwave oven, the 
usability and the value of the microwave oven can be improved, and the microwave oven has an 
extremely good market prospect.