High Level b Triggers with CMS

We will review the the High Level Trigger performances of the CMS experiment to identify b quark decays. Starting from the Level-1 trigger, based on the information of calorimeters and muon chambers, the selection uses the tracker information which provides precise and fast reconstruction of charged tracks using a partial and regional reconstruction approach. We will show that is possible to efficiently select inclusive b-jets as well as specific B hadron decays.