Darkon dark matter,unparticle effects and collider physics

In this talk I report recent results on the simplest dark matter model,the Darkon model,and supersymmetric unparticle effects on dark matter,and some implications for collider physics.I first discuss dark matter properties and collider signatures in the Darkon model,and then I discuss some implications for dark matter if a scalar unparticle is introduced to the MSSM.