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The tracking and analysis of geophysical network data has been fully carried out at stations and central stations. In the past five years, the effectiveness of the work has gradually become apparent. The event records generated by the tracking and analysis of earthquake precursor data demonstrate the dynamic changes in the observation data of the precursor network，which is beneficial for the persons to analyze and summarize various events, so that similar problems can be quickly solved in the next encounter. However, in the actual process of data tracking and analysis，some station personnel may have some defects in the production of maps. This article analyzes and explores common problems in selecting mapping time periods, text annotations, missing event recording maps, multi-component measurement item recording maps, earthquake event recording maps, and other common problems in the maps produced by data tracking and analysis, proposes specific methods to solve the problems, and assigns them to practice. It provides useful assistance for station personnel to complete data tracking and analysis research results, and also provides certain reference and reference for encountering other difficulties in work.

Taking the computer of seismic station as the object of discussion, the causes of “system crash” “automatic shutdown” “blue screen” and other faults that frequently occur in the computer at the precursor site area are analyzed and studied. Reasonable and effective solutions are proposed to eliminate the fault in time and effectively ensure the normal operation of the station computers. It has certain guiding significance for the computer maintenance and management person of the seismic station.

Based on the analysis of all kinds of interference changes and rules in the water temperature observation data of Yong’an well，it is concluded that the significant influences on the data are the atmospheric precipitation and the surface lateral supply，air pressure，instrument failure，human interference，and seismic response caused by the precipitation，etc. Finally，some discussions and suggestions are put forward.

In the process of digital observation，efficient observation means，reliable observation information and accurate calibration method are the important guarantees for observation quality. The ground water observation station of Yongan seismic station is unattended. Calibrate the water level gauge quarterly，according to relevant regulations. Observers check the water level every quarter. The calibration value is the basis for judging whether the water level gauge is working normally. In order to ensure the accuracy and efficiency of water level calibration，the author has developed a set of water level calibration device. It consists of two parts: a water level measurement module and a digital display module. It basically realizes the transformation from analog calibration to digital calibration. The device has been applied to the quarterly water level inspection of Yongan well. Compared with the measuring bell method used by Yongan station in the past，this device can reduce the error of water level calibration data to some extent，save working time and greatly improve the efficiency of calibration work.