In this report, the speech act "Katari=Antenarrative", which embodies the survival strategy of a company and makes it effective, in the management field is observed. Catastrophic accidents and disasters occur frequently in recent years, and formulating Business Continuity Plan (BCP) is promoted. The effectiveness of BCP is evaluated especially after the Great East Japan Earthquake. This report considers the cases of two enterprises which decided upon BCP before 3.11 and achieved early restoration. Here we analyze the management field, which not only decides upon BCP but also operated it effectively and made survival possible, by the framework of "Katari=Antenarrative" theory. And we discuss how the performative speech act "Katari=Antenarrative" can be not only emergent but also strategic in the management field.