添加引用ICSharpCode.SharpZipLib.dll、NPOI.dll、NPOI.OOXML.dll、NPOI.OpenXml4Net.dll、NPOI.OpenXmlFormats.dll，这几个dll文件NPOI官网上只能下载到源码，编译有些麻烦。这里找到一个现成的，http://www.itmop.com/downinfo/267826.html。源码如下。using System; using System.Collections.Generic; using System.Windows.Forms; using NPOI.XWPF.UserModel; using System.IO; namespace WindowsFormsApp1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { openFileDialog1.Title = "选择word文件"; openFileDialog1.Filter = "Word文档|*.docx"; if (openFileDialog1.ShowDialog() == DialogResult.OK) { textBox1.Text = openFileDialog1.FileName; } } private void button2_Click(object sender, EventArgs e) { //遍历word文档所有段落，并存入文本文件 FileStream fs = new FileStream(textBox1.Text, FileMode.Open); XWPFDocument doc = new XWPFDocument(fs); IList<XWPFParagraph> paragraphs = doc.Paragraphs; foreach(XWPFParagraph paragraph in paragraphs) { File.AppendAllText("⽂本1.txt", paragraph.Text); } } } }