Ultramicro mass and ultramicro load change tester

The utility model relates to a detection device, in particular to an ultramicro quality and an ultramicro load variation detection device. The utility model comprises an organism (1), an atomic power microscope detection device (27) and a flexible micrometer device (26). Wherein, the flexible micrometer device (26) is connected with the organism (1) via a screw (2) and a compression spring (3) is arranged between the flexible micrometer device (26) and the organism (1). The utility model designs a device, which can carry out the detection of the microscopic quantity by the ultramicro resolution capability of the scanning probe microscope on the one hand and is suitable for the precise detection of the microscopic quantity in the common engineering technological field. The detecting physical quantity can be easily applied in the monitoring, computing and converting on the process via processing. The utility model can make the engineering gain a very precise detection means of the ultramicro quality and the ultramicro load variation. Adopting the utility model can make the detection of the ultramicro quality and the ultramicro load variation relatively easy. In addition, the utility model has wide application range and simplified relative operation conditions.