You need lots of fabulous ideas to make it as scary and exciting as possible.
So send us your scariest, spine-tingling top tips for organising an impressive party.
Whether it's ideas for gruesome cakes, hair-raising decorations or even chilling costumes we want to hear from you.
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You could use cranberry juice for a drink because it looks like blood.
Ola, 8, Manchester
You can use fake blood to look extra scary and you can also use face paint too.
Louise, 10, London
I think you could put up a sign on the door that is made out of fake blood and says keep out!
Amina, Luton
I think you should make gruesome green cupcakes! You should also dress up as ghosts!
Louise, 10,  Isle of Man
Halloween's coming up and lots of people are throwing parties but how do you make it a spooktacular celebration?