Abstract -- The earthquake center of Central Weather Bureau has set up a program to promote the earthquake strong motion’s data collection over the Taiwan island since 1992. The purpose is to establish an over 1000 acceleragraph system to collect reliable strong motion data for earthquake hazard analysis. Among them, 600 instruments are deployed on the free field to monitor the earthquake center of Central Weather Bureau has set up a program to promote the earthquake strong motion’s data collection over the Taiwan island since 1992. The purpose is to establish an over 1000 acceleragraph system to collect reliable strong motion data for earthquake hazard analysis. Among them, 600 instruments are deployed on the free field to monitor the ground motion. In order to maintain the instrument and to collect the data, the system has been divided into 7 areas, and distributed among the universities and research institutes to share the load of data acquisition. Our research group is in charge of area of Central Taiwan which has 167 stations including the counties of Taoyuan (21), Hsinchu (24), Miaoli (28), Taichung (44), Nantou (23), and Changhua (27), a total area of 150 km x 140 km. The duties of this project include 1) instrument maintenance, 2) data acquisition, 3) background noise analysis, and 4) documentation and basic signal analysis. All of these efforts will direct toward collecting high quality strong motion records and making the system operate more smoothly and reliably.