你看看，dataGridView1 设置一下 DataPropertyName 属性，绑定这三个字段：

using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace WinForm
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();

            List<string> drTypeList = new List<string>
            {
                "123 百度:www 2019/4/2 10:16：04",
                "765 百度:www 2019/4/2 10:16：04",
            };
            drTypeList = drTypeList.Distinct().ToList();

            Model model;
            List<Model> lst = new List<Model>();
            foreach (var item in drTypeList)
            {
                string[] strArr = item.Split(' ');
                model = new Model();
                model.tel = strArr[0];
                model.content = strArr[1];
                model.time = strArr[2] + " " + strArr[3];
                lst.Add(model);
            }
            dataGridView1.DataSource = lst;
        }
    }

    class Model
    {
        public string tel { get; set; }
        public string content { get; set; }
        public string time { get; set; }
    }
}