Disclosed are a method for constructing an analysis model for evaluating seismic safety of a bridge, capable of quickly checking the seismic safety of each of a plurality of bridges, and an analysis model construction system thereof. According to one embodiment of the present invention, the method for constructing an analysis model comprises the following steps: using an input earthquake inputted to a bridge to calculate state data about the structure of the bridge after the occurrence of an earthquake when receiving a request for evaluating earthquake safety of the bridge; combining the state data to form a seismic analysis file about the bridge; and outputting the seismic analysis file as a response to the evaluation request. The step of calculating the state data comprises the steps of: analyzing the structure of the bridge in accordance with a finite element analysis method to construct an analysis model; storing the analysis model in a database by being associated with model information of the bridge; and applying the input earthquake to the analysis model searched from the database to calculate the state data in accordance with the model information of the bridge to which the input earthquake was inputted.
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