byte[] imageBytes = GetImageBytes(pictureBox1.Image); string connStr = "SQL Server连接字符串"; using (SqlConnection conn = new SqlConnection(connStr)) { string sql = "Insert Into T_Img Values (@ImgData) "; using (SqlCommand cmd = new SqlCommand(sql)) { SqlParameter param = new SqlParameter("ImgData", SqlDbType.VarBinary, imageBytes.Length); param.Value = imageBytes; cmd.Parameters.Add(param); cmd.Connection = conn; conn.Open(); int i = cmd.ExecuteNonQuery(); MessageBox.Show(i.ToString()); } }