A generation method of Bell-type states is proposed which is involving light and the vibrational motion of a single trapped ion. Entangled light-motional state may be readily generated if a conditional measurement of the ionics internal electronic state is made after an appropriate interaction time and a suitable preparation state. The research shows that all four Bell states may be generated by using different motional sidebands (either blue or red), as well as adequate ionic relative phases. The distinct advantage of the scheme are similar to Lamb-Dicke approximation, which greatly decreased the operation speed.