Do not confuse Halloween with All Saint's Day,  The latter is actually celebrated on November 1st.  You may have many different answers to the question of Christians celebrating Halloween depending on who you ask.  As a generality, most Christians do not celebrate this particular holiday as it is viewed as demonic.  What is your opinion?  Do you participate or allow your children to do so?

http://elev8.com/620464/what-is-all-saints-day/