Drying oven with weighing device

The utility model relates to a drying oven with a weighing device, which is used for flat-plate-shaped samples and comprises a shell, a drying cavity and a heating device, the drying cavity and the heating device are arranged in the shell, a horizontally-placed mass sensing element plate is arranged in the drying cavity, and a high-temperature-resistant mass sensing element used for weighing the samples is arranged on the mass sensing element plate. A sample is placed on the high-temperature-resistant mass sensing element, the heating device is arranged at the bottom of the drying cavity, and the heating device and the high-temperature-resistant mass sensing element are electrically connected to the control module. And a high-temperature-resistant infrared scanning element is arranged above the sample. Whether a sample reaches constant weight or not is known through weight change reflected by the high-temperature-resistant mass sensing element, and the heating device is controlled to stop heating after the co