Is there going to be a secound season of shugo chara?

Yes, there has been a second season of Shugo Chara!. It was announced on the official Shugo Chara! website in 2008, and aired from October 4, 2008 to March 27, 2009 in Japan. The second season of the anime follows Amu Hinamori and her friends as they continue to battle the Evil X Eggs and search for the remaining Guardian Characters.