In this paper, we report our preliminary research on the dynamic triggering function of the Nepal M_S8.1 earthquake with respect to microearthquake activity in the Kashi-Wuqia intersection area. We also discuss the triggering influence of the earthquake on activities at the Kashi-Wuqia intersection area based on observation data from the Xinjiang regional digital seismic network station. In this study, we used the discrete wave number method and performed envelope function waveform analysis, spectrum analysis, and β statistical test methods. The results show that after the Nepal 8.1 earthquake, the dynamic stress change produced at the Kashi-Wuqia intersection area exceeded the dynamic stress triggering threshold. Using the envelope function method, we determined that after the Nepal 8.1 earthquake, at least eight microearthquakes occurred at the Kashi-Wuqia intersection area before the arrival of a seismic surface wave. Six of these microearthquakes had not yet been identified by the regional seismic network or any single station location. Our β statistical results show that after the Nepal 8.1 earthquake, the seismic activities at the Kashi-Wuqia intersection area obviously changed, especially on the day of the earthquake, with the daily frequency of seismic activities being about ten times that in the month prior to the earthquake. Twenty-five days after the Nepal 8.1 earthquake, the seismic activities at the Kashi-Wuqia intersection area strengthened significantly. After comprehensive analysis, we consider that the Nepal 8.1 earthquake had a certain dynamic triggering function with respect to the microearthquake activity that occurred in the Kashi-Wuqia intersection area. The triggering time included not only the immediate dynamic stress trigger after the passage of the surface wave, but also the delayed dynamic stress trigger, which may have remained in a subcritical state with the stress of the Kashi-Wuqia intersection area. Fault rupture may require further accumulation or dynamic stress changes to affect the fault instability rate. Instability may be present long before dynamic stress ends despite the absence of any weakening.