Following the M_S5.5 earthquake that struck Pingyuan County,Shandong Province,China(37.16°N,116.34°E),at 02:33 local time on August 6,2023,six rapidly deployed temporary seismic stations were integrated with the permanent regional network. This integration significantly enhanced the monitoring capability within 50km of the epicenter and lowered the minimum detectable magnitude from M_L0.2 to M_L-0.3. Application of the double-difference relocation algorithm to the earthquake sequence revealed a NE-SW-trending,band-like distribution,with a long axis of 10km and a short axis of 6km. Incorporation of data from the temporary stations refined focal depth estimates,concentrating the hypocentral depths within 21～30km and increasing the proportion of events occurring at depths of 22～28km from 87.1% to 91.2%. Phase residuals showed directional changes consistent with a “sharpening effect”: the kurtosis of the RMS residual distribution fitted by a normal curve increased slightly,whereas the peak width decreased. the proportion of low residuals(0～0.15s)rose marginally to 87.6%,that of high residuals(>0.2s)decreased to 2.9%,and the standard deviation was reduced by 4.7%(0.051s to 0.0486s). Hypocenter location precision improved significantly in all components,with the widths of the 95% confidence intervals decreasing by 29.0% in the EW direction,22.7% in the SN direction,and 28.1% in the vertical direction;the vertical standard deviation decreased by 31.3%. Statistical tests confirmed that these improvements were highly significant(p＜0.001)and associated with large effect sizes(1.67,2.41,and 4.23). These results demonstrate that the temporary stations,by increasing spatial coverage density by 30% and location precision by 10.1%,provided reliable data support for precise microearthquake relocation and seismogenic structure analysis.