Based on the typical precipitation process data observed by an X-band dual-linear polarimetric all-solid-state doppler radar in Xingtai, the data quality and system stability of polarization parameters were analyzed. Then, the attenuation of Z_H and Z_DR were preliminarily corrected via Φ_DP, and the corrected results were evaluated. Results indicate that the initial phase Φ_DP(0) of 724XSP dual-linear polarization radar along with the change of elevation angle and azimuth are relatively stable. The analysis of vertical scanning data indicates that Z_DR and CC can better reflect the actual situation of precipitation particles. Signal-to-Noise Ratio (SNR) is an important factor that affects the quality of polarization radar data. When SNR reaches 15.0 dB or above, Z_DR and CC change smoothly with SNR, and the radar data is credible. The attenuation correction result of dual polarization radar reflectivity factor is more similar to S-band radar. The correlation coefficient R is 0.78 and the distribution of Z_DR-Z_H scatter points is closer to the theoretical results calculated by the scattering model after correction, indicating a good correction effect.