4644 point load power supply module high and low temperature test clamp and test method thereof

The invention discloses a 4644-point load power supply module high and low temperature test clamp which comprises a PCB and a test seat, the test seat is installed in the middle of the PCB and is electrically connected with the PCB, and the PCB is provided with a mode selection switch, an enabling switch, an output voltage selection switch, four first channels used for universal meter voltage test and four second channels used for load connection. The upper side of the PCB is also provided with a DC input end connected with a current power supply, and the test seat is provided with a placing groove for placing a power supply module. The test seat is adopted to replace a bonding pad, and the 4644 power supply module only needs to be placed in the test seat, so that the testability is greatly optimized; switch selections are respectively designed for 4644 four paths of input, so that selection of single-channel work and turn-off can be realized; three output voltage gears are designed for selection, and short c