diff --git a/PackingInvoiceMapper/frm_Main.vb b/PackingInvoiceMapper/frm_Main.vb
index 11b5650..ed6fd3e 100644
--- a/PackingInvoiceMapper/frm_Main.vb
+++ b/PackingInvoiceMapper/frm_Main.vb
@@ -298,13 +298,14 @@ Public Class frm_Main
             ReDim item_product_list(item_product_max_index)
         End If
 
-        DBCmd = "SELECT CAST(ProdCode AS CHAR), SalesPackingCntColNm, SalesPackingSerialColNm FROM " & applyPlistDB & " WHERE ProdCode <> 1 GROUP BY ProdCode ORDER BY ProdCode asc;"
+        '제품 ProdCode는 1부터 시작하며, ProSet(1),LuxSet(2)는 같은 컬럼을 사용하고 있어 중복되기 때문에 2부터 조회
+        DBCmd = "SELECT CAST(ProdCode AS CHAR), SalesPackingCntColNm, SalesPackingSerialColNm FROM " & applyPlistDB & " WHERE ProdCode > 1 GROUP BY ProdCode ORDER BY ProdCode asc;"
         If DBQueryReader(DBCmd) Then
-            Dim RowCount As Int16 = (sqlDataQuery.Length / 3) - 1
+            Dim RowCount As Int16 = (sqlDataQuery.Length / 3)
             Dim dataSetCount As Int32 = 0
             Dim item_data As item_info
 
-            For row = 0 To RowCount
+            For row = 1 To RowCount
                 item_data.item_type = "P"
                 For col = 0 To 2
                     If col = 0 Then
@@ -347,6 +348,7 @@ Public Class frm_Main
         End If
 
         '제품 정보 조회 쿼리 생성
+        'item_product_list 에 index (2)부터 등록되어 있기에 (2)부터 조회
         query_product = Nothing
         For i = 2 To item_product_max_index
             If query_product = Nothing Then
@@ -359,6 +361,7 @@ Public Class frm_Main
         '구성품 정보 조회 쿼리 생성
         query_component = Nothing
         For i = 0 To item_component_max_index
+            '구성품 중 ProdCode는 있으나 품목이 없는 경우가 있기에 NULL 체크 필요
             If item_component_list(i).sales_packing_cnt_col_nm <> Nothing Then
                 If query_component = Nothing Then
                     query_component = "IFNULL(" & item_component_list(i).sales_packing_cnt_col_nm & ",'0')"
@@ -1542,7 +1545,8 @@ Public Class frm_Main
         DBCmd = "SELECT " & query_component & " FROM " & applySalesDB & " WHERE PackingCode = '" & codeData & "'"
 
         If DBQueryReader(DBCmd) Then
-            For i = 0 To item_component_max_index   'sqlDataQuery.Length - 1 와 같음
+            'query_component로 구성품 개수만큼 조회했기에 item_component_max_index(=sqlDataQuery.Length - 1)까지 조회
+            For i = 0 To item_component_max_index
                 item_component_list(i).cnt = sqlDataQuery(i)
             Next
 
@@ -1567,7 +1571,8 @@ Public Class frm_Main
 
     Private Function serialDivision() As Boolean
         Dim slashNum As Int16
-        For i = 1 To item_product_max_index
+        'item_product_list 에 index (2)부터 등록되어 있기에 (2)부터 조회
+        For i = 2 To item_product_max_index
             If item_product_list(i).cnt > 0 Then
                 Dim restData As String = item_product_list(i).serial
                 slashNum = UBound(Split(restData, "/"))
@@ -1831,15 +1836,15 @@ Public Class frm_Main
     Private Function serialPacking(codeData As String) As Boolean
         DBCmd = "SELECT " & query_product & " FROM " & applySalesDB & " WHERE PackingCode = '" & codeData & "'"
         If DBQueryReader(DBCmd) Then
-            Dim RowCount As Int16 = (sqlDataQuery.Length / 2)
             Dim dataSetCount As Int32 = 0
 
-            For row = 2 To RowCount
+            'query_product가 ProdCode = 2부터 생성되었기에 (2)부터 조회
+            For i = 2 To item_product_max_index
                 For col = 0 To 1
                     If col = 0 Then
-                        item_product_list(row).serial = sqlDataQuery(dataSetCount)
+                        item_product_list(i).serial = sqlDataQuery(dataSetCount)
                     ElseIf col = 1 Then
-                        item_product_list(row).cnt = sqlDataQuery(dataSetCount)
+                        item_product_list(i).cnt = sqlDataQuery(dataSetCount)
                     End If
                     dataSetCount += 1
                 Next
@@ -3432,7 +3437,7 @@ Public Class frm_Main
             ProdSelect(i) = Nothing
         Next
 
-        For i = 1 To item_product_max_index
+        For i = 0 To item_product_max_index
             item_product_list(i).cnt = 0
             item_product_list(i).serial = Nothing
         Next