编辑“︁B1A4”︁（章节）

== 成員資料 ==
{| class="wikitable"
! colspan="4" style="background: #D9FF00;" |成員列表
|-
! 藝名<ref>[http://www.warnermusic.com.tw/assets/store/B1A4_sign.jpg 藝名以台灣華納唱片公布的官方名字為準]{{dead link|date=2017年11月 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
! 本名<ref>{{Cite web |url=http://ww4.sinaimg.cn/large/7e45f4d2gw1diuush2v4pj.jpg |title=本名以台灣華納唱片公布的官方名字為準 |accessdate=2012-02-27 |archive-date=2014-09-05 |archive-url=https://web.archive.org/web/20140905044250/http://ww4.sinaimg.cn/large/7e45f4d2gw1diuush2v4pj.jpg |dead-url=no }}</ref>
! 出生日期/地點
! 隊內職務<ref>{{Cite web |url=http://b1a4.com/2013/profile.html |title=隊中職務以韓國官方網站為準 |accessdate=2017-08-02 |archive-date=2017-08-02 |archive-url=https://web.archive.org/web/20170802210339/http://b1a4.com/2013/profile.html |dead-url=no }}</ref>

|-
| [[振永]]（진영）<br />JinYoung
| 鄭振永（정진영）<br />Jung Jin Young
| {{birth date and age|1991|11|18}} <br />{{KOR}}[[忠清北道]][[忠州市]]
| 隊長、歌唱
|-
|[[CNU (歌手)|CNU]]（신우）<br />Sin-woo
| 申東佑（신동우）<br />Shin Dong Woo
| {{birth date and age|1991|06|16}} <br />{{KOR}}[[忠清北道]][[清州市]][[興德區]]
| 歌唱、饒舌<ref>在2017年9月16日播出的《[[認識的哥哥]]》中提到，自己是隊內主舞、副唱、副Rapper、副製作人</ref>
|-
| [[燦多]]（산들）<br />SanDeul
| 李征桓（이정환）<ref>燦多原為自己本名漢字正名為「"季"征桓」，後證實其實是寫錯字了</ref><br />Lee Jung Hwan
| {{birth date and age|1992|03|20}} <br />{{KOR}}[[釜山廣域市]][[沙上區]]
| 主唱
|-
| [[Baro]]（바로）
| 車善玗（차선우）<br />Cha Sun Woo
| {{birth date and age|1992|09|05}} <br />{{KOR}}[[光州廣域市]]
| 饒舌
|-
| [[孔燦]]（공찬）<br />GongChan
| 孔燦植（공찬식）<br />Gong Chan Sik
| {{birth date and age|1993|08|14}} <br />{{KOR}}[[全羅南道]][[順天市]]
| 歌唱、門面、忙內
|-
|}

=== 成員變遷表 ===
<timeline>
ImageSize   = width:1000 height:250
PlotArea    = width:900 height:200 left:75 bottom:20
Alignbars   = justify
DateFormat  = mm/dd/yyyy
Period   = from:2011 till:2024
TimeAxis   = orientation:horizontal format:yyyy

Colors =
 id:album     value:rgb(0.99, 0.41, 0.38)      legend:Studio_album
 id:acting    value:rgb(0.65, 0.99, 0.0)     legend:B1A4_acting
 id:military  value: gray(0.5)                 legend:military_enlistment
 id:personal  value: rgb(0.99, 0.97, 0.37)     legend:personal_acting

Legend = orientation:horizontal position:bottom
ScaleMajor = unit:year increment:1 start:2011 gridcolor:black

BarData =
  bar:JinYoung text:振永
  bar:CNU text:CNU
  bar:SanDeul text:燦多 
  bar:Baro text:Baro
  bar:GongChan text:孔燦

PlotData =
 fontsize:m width:10
 bar:JinYoung  from:04/23/2011 till:06/30/2018 Color:acting
 bar:JinYoung  from:06/30/2018 till:06/20/2019 Color:personal
 bar:JinYoung  from:06/20/2019 till:04/09/2021 Color:military
 bar:JinYoung from:04/09/2021  till:end Color:personal
 bar:CNU   from:04/23/2011 till:01/22/2019 Color:acting
 bar:CNU   from:01/22/2019 till:08/28/2020 Color:military
 bar:CNU   from:08/28/2020 till:end Color:acting
 bar:SanDeul  from:04/23/2011 till:11/11/2021 Color:acting
 bar:SanDeul  from:11/11/2021 till:08/10/2023 Color:military
 bar:SanDeul  from:08/10/2023 till:end Color:acting
 bar:Baro  from:04/23/2011 till:06/30/2018 Color:acting
 bar:Baro  from:06/30/2018 till:07/30/2019  Color:personal
 bar:Baro  from:07/30/2019 till:02/20/2021 Color:military
 bar:Baro  from:02/20/2021 till:end Color:personal
 bar:GongChan from:04/23/2011 till:end Color:acting
 
LineData =
 layer:back
  color:album
   at: 04/21/2011
   at: 09/16/2011
   at: 03/19/2012
   at: 05/29/2012
   at: 11/13/2012
   at: 05/07/2013
   at: 01/13/2014
   at: 07/14/2014
   at: 08/10/2015
   at: 11/30/2016
   at: 09/25/2017
   at: 10/19/2020

</timeline>
*{{Color sample|#FF6961}}：團體專輯發行。
*{{Color sample|#808080}}：因兵役而暫停演藝事業。
*{{Color sample|#FCF75E}}：未與WM娛樂續約，簽約新公司進行活動。