diff --git a/base-buildpackage/src/main/java/com/hzya/frame/plugin/cinvoice/assembler/ElecTrainInvoiceAssembler.java b/base-buildpackage/src/main/java/com/hzya/frame/plugin/cinvoice/assembler/ElecTrainInvoiceAssembler.java
index c330636a..21d8bac7 100644
--- a/base-buildpackage/src/main/java/com/hzya/frame/plugin/cinvoice/assembler/ElecTrainInvoiceAssembler.java
+++ b/base-buildpackage/src/main/java/com/hzya/frame/plugin/cinvoice/assembler/ElecTrainInvoiceAssembler.java
@@ -80,7 +80,7 @@ public class ElecTrainInvoiceAssembler implements ParamAssembler{
                 // 18. 销方名称，非必填
                 param.put("xfmc", "");
                 // 19. 购方税号，非必填
-                param.put("gfsh", Convert.toStr(trainticketEntity.getTT_BUYERTAXNO(),publicInfo.getPI_USEACCOUNTID()));
+                param.put("gfsh", Convert.toStr(trainticketEntity.getTT_BUYERTAXNO(),publicInfo.getPI_TAXNO()));
                 // 20. 购方名称，非必填
                 param.put("gfmc", Convert.toStr(trainticketEntity.getTT_BUYERNAME(),publicInfo.getPI_USEACCOUNTNM()));
                 // 21. 出发站拼音，非必填