PIND test fixture and fixing method

The invention discloses a PIND test fixture and a fixing method, the PIND test fixture comprises a support and a pressure applying piece, the support comprises an intersection part and a plurality of fixing arms arranged on the periphery of the intersection part, and the plurality of fixing arms jointly define an accommodating space which is located below the intersection part and is used for placing a device to be tested; the pressure applying piece is detachably arranged on the intersection part and can vertically move relative to the intersection part so as to apply pressure and fix the device to be tested; according to the invention, the to-be-tested device is fixed by the light-weight clamp which can be fixed on the vibration equipment, so that an adhesive medium is replaced, the influence on the appearance of the to-be-tested device is reduced to a great extent, and the practicability is relatively high; the pressing piece for pressing and fixing can be changed in the vertical direction to adapt to devi