In this paper we present a set of processes different from the conventional template-matching algorithm,which can provide the spatial,temporal and strength information of the identified earthquakes and extract the corresponding phase arrival time data of each earthquake based on phase association for subsequent research. The basic principle of these processes is that seismic events will make the seismic phase records cluster in time so that the density-based clustering method can extract the seismic phase information. The specific implementation steps are as follows:①calculate the normalized cross-correlation coefficient(NCC)of template events over continuous waveforms after the same down sampling and filtering processing,select the arrival time information whose NCC exceeds the threshold value to form a discrete-time sequence;②apply the DBSCAN clustering analysis on the whole sequence and carry out self-consistency-test on each cluster to obtain the phase association and further the arrival times of a single earthquake;③obtain the final results after the duplicate-removing,magnitude measurement and the earthquake locating. The above processes are applied to the seismic gap in the Longmen shan fault zone's southern segment in this paper. We obtained 93 identified events of 35 templates from May 2013 to December 2016,which is 2.65 times the template used,including 390 P phases and 791 S phases. Most of the templates did not recognize their own repeated/similar earthquakes,and the identified earthquakes were successfully matched by a few templates,mainly distributed near Shuanghe and Anshun. The precise location results show that the Shuangshi-Dachuan fault tends to NW,and there may be an unknown "shovel-like" fault in the west of Anshun. The focal depth is similar to that of the Lushan 7.0 earthquake sequence,2003,and there exists a phenomenon of deepening from SW to NE,which may reflect the similar structural characteristics of different sections of the southern Longmen shan fault zone. The test results show that the processes designed in this paper can provide a complete phase report,including source parameters and arrival time information of each seismic phase. It is a feasible scheme for independent computer processing in the field of template recognition.