Seismic fragility curves are used to determine the seismic vulnerability of structures.But what's important in determining seismic vulnerability.Definition the criteria for failure.The probability of exceeding these failure criteria is based on probabilistic analysis.In this research, two different criteria for local failure are defined for structures.The first criterion for local failure is the definition of the plastic rotation of structural beams.And the second criterion of local failure is the definition of the plastic rotation of the shear wall of the first floor of the structure.And the probability of a structural failure is achieved with two defined criteria.In most of the research that has been done so far, a general failure criterion such as maximum floor drift has been used to determine the probability of structural failure.Research showed that the probability of failure of shear walls was reduced by increasing the number of floors.The fragility curve is shown for two different criteria