In order to enrich the theoretical basis of safety science,and promote development of safety culture research,from the view of semiotics and safety culture,the definition of safety culture semiotics is proposed,and its connotation is explined.Based on this,the theoretical basis of safety culture semiotics is analyzed,and the sub-ject contents of safety culture semiotics are elaborated.Meanwhile,the multidimensional structure system of meth-odology of safety culture semiotics is constructed from five dimensions,such as time and theory dimensions.The re-sults show that safety culture semiotics is the concrete expression of the safety culture,which is a branch subject of the safety culture.The subject contents of safety culture semiotics are studied widely,and its theoretical basis is firm.Moerever,it has broad application prospect.%为丰富安全科学理论，促进安全文化学研究发展，从符号学和安全文化学角度，提出安全文化符号学的定义，并分析其内涵。基于此，分析安全文化符号学的理论基础，阐述安全文化符号学的学科内容，并基于时间维与理论维等5个维度构建安全文化符号学方法论的多维结构体系。结果表明：安全文化符号学是安全文化学的具体表达，其作为安全文化学的一个分支学科，研究内容丰富，学科理论基础牢固，且具有广泛的应用前景。
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