Based on the ergonomic principles of the signs,we test and evaluate the effectiveness of GB/T24362-2009 seismic public information graphic signs in this paper. Combining the test data of comprehension rate,familiarity,physical conformity,and conceptual conformity,we evaluate whether the sign symbols in this standard follow the International Organization for Standardization(ISO)assessment standards. We focus on the influencing factors of the high and low comprehension rates of the signs in this standard,and explore the mechanisms by which physical conformity,conceptual conformity,and familiarity affect the sign comprehension rate(P＜0.001). The results of test data revealed that physical conformity and familiarity were the critical factors affecting sign comprehension rates. We concluded that the physical conformity,conceptual conformity,and familiarity of logo graphics should be improved first to enhance the effectiveness of the logo. Finally,some of the signs in GB/T24362-2009 with low comprehension rates were analyzed with ergonomic principles,and specific suggestions for improved design were put forward.