Abstract: A method for testing finger dexterity which is applied to a device for testing finger dexterity. The device comprises a testing mechanism with base part, sensor, metal conductive sheet, and processing unit. The base part defines a screw hole defining a first conductive point, the metal conductive sheet defines a second conductive point. The sensor detects a screw inserted into the screw hole, and produces an induction signal. The circuit board produces a trigger signal when the screw makes contact with the first conductive point and the second conductive point. The processing unit receives and analyzes the time lengths between signals and repetitions of signals, and generates a testing result accordingly as a measure of manual dexterity.