The invention discloses a nanosecond-level rising edge high voltage pulse generation device in a rydberg state field ionization experiment. The nanosecond-level rising edge high voltage pulse generation device comprises a power supply module, a switch module and an output load circuit, wherein the power supply module is connected with the switch module, and the switch module is connected with the output load circuit. The power supply module comprises a direct current stabilized power supply and an R1C1 filter circuit, and a number I power supply supplies power to the direct current stabilized power supply. The switch module comprises a quick high voltage pulse switch and an external trigger signal source, and a number II power supply supplies power to the quick high voltage pulse switch. The output load circuit is composed of a damping resistor R2, a discharge resistor R3 and a test capacitor C2. The nanosecond-level rising edge high voltage pulse generation device is simple in structure, convenient to operate and good in stability; besides, rising edges are fast, and frequency and the duty ratio can be modulated. In the fields of laser ionization spectroscopy, laser mass-spectrometric technique and the like, a pulse field of nanosecond-level rising edges can be provided for a rydberg state field ionization process, and therefore a high ionization rate can be realized in the rydberg state field ionization process.