1. 開啟文件。

2. 快捷鍵Alt + F11開啟VBA編輯器，選擇選單“插入->模組”

3. 貼上程式碼

Option Explicit


Sub SplitEveryFivePagesAsDocuments()
Dim oSrcDoc As Document, oNewDoc As Document
Dim strSrcName As String, strNewName As String
Dim oRange As Range
Dim nIndex As Integer, nSubIndex As Integer, nTotalPages As Integer, nBound As Integer
Dim fso As Object


Const nSteps = 110 ' 修改這裡控制每隔幾頁分割一次


Set fso = CreateObject("Scripting.FileSystemObject")
Set oSrcDoc = ActiveDocument
Set oRange = oSrcDoc.Content


nTotalPages = ActiveDocument.Content.Information(wdNumberOfPagesInDocument)
oRange.Collapse wdCollapseStart
oRange.Select
For nIndex = 1 To nTotalPages Step nSteps
Set oNewDoc = Documents.Add
If nIndex + nSteps > nTotalPages Then
nBound = nTotalPages
Else
nBound = nIndex + nSteps - 1
End If
For nSubIndex = nIndex To nBound
oSrcDoc.Activate
oSrcDoc.Bookmarks("\page").Range.Copy
oSrcDoc.Windows(1).Activate
Application.Browser.Target = wdBrowsePage
Application.Browser.Next


oNewDoc.Activate
oNewDoc.Windows(1).Selection.Paste
Next nSubIndex
strSrcName = oSrcDoc.FullName
strNewName = fso.BuildPath(fso.GetParentFolderName(strSrcName), _
fso.GetBaseName(strSrcName) & "_" & (nIndex \ nSteps + 1) & "." & fso.GetExtensionName(strSrcName))
oNewDoc.SaveAs strNewName
oNewDoc.Close False
Next nIndex
Set oNewDoc = Nothing
Set oRange = Nothing
Set oSrcDoc = Nothing
Set fso = Nothing
MsgBox "結束！"
End Sub

4. 快捷鍵 F5 執行，直到出現“完成”表示結束。