In the present work, we investigate the productions of the molecular states composed of D ( * ) s D( * ) and D ( * ) s D( * ) s in the B and B s decays by using an effective Lagrangian approach. The branching ratios in terms of the model parameter α and the binding energy ∆E are estimated. Our estimations indicate that the branching fractions are of the order of 10 −4 and the relative ratios are very weakly dependent on the model parameter α and the binding energy ∆E. The predicted ratios are helpful for searching the hidden-charm molecular states with strange quark in the future experiments at Belle II and LHCb.

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