Powder fluidity testing device and testing method

The invention discloses a powder fluidity testing device and a powder fluidity testing method. The powder fluidity testing device comprises a base plate, a vibration device, a sample container and a height measuring device. The chassis has a test surface. The vibration device is configured to connect the test surface. The sample container is provided with an upper opening and a lower opening which are opposite to each other, and the sample container is configured to be removably placed on a test surface; when the sample container is placed on the test surface, the lower opening is attached to the test surface, and the ceramic raw material powder is added into the sample container through the upper opening, so that the ceramic raw material powder is stacked on a part of the test surface surrounded by the lower opening; and when the sample container is removed from the test surface, the ceramic raw material powder is moved out of the sample container through the lower opening and is retained on the test surface