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In this work, we use pQCD approach to calculate 20 $B_{(s)}\toD^*_{s0}(2317)P(V)$ two body decays by assuming $D^*_{s0}(2317)$ as a $\bar cs$scalar meson, where $P(V)$ denotes a pseudoscalar (vector) meson. These$B_{(s)}$ decays can serve as an ideal platform to probe the valuableinformation on the inner structure of the charmed-strange meson$D^*_{s0}(2317)$, and to explore the dynamics of strong interactions andsignals of new physics. These considered decays can be divided into two types:the CKM favored decays and the CKM suppressed decays. The former are induced by$b\to c$ transition, whose branching ratios are larger than $10^{-5}$. Thebranching fraction of the decay $\bar B^0_s\to D^{*+}_{s0}(2317)\rho^{-}$ isthe largest and reaches about $1.8\times 10^{-3}$, while the branching ratiosfor the decay $\bar B^0_s\to D^{*+}_{s0}(2317)K^{*-}$ and other two pureannihilation decays $\bar B^0\to D^{*+}_{s0}(2317)K^-, D^{*+}_{s0}(2317)K^{*-}$are only at $10^{-5}$ order. Our predictions are consistent well with theresults given by the light cone sum rules approach. These decays are mostlikely to be measured at the running LHCb and the forthcoming SuperKEKB. Thelatter are induced by $b\to u$ transition, among of which the channel $\barB^0\to D^{*-}(2317)\rho^+$ has the largest branching fraction, reaching up to$10^{-5}$ order. Again the pure annihilation decays $B^-\toD^{*-}_{s0}(2317)\phi, \bar B^0\to D^{*-}_{s0}(2317)K^+(K^{*+}), B^-\toD^{*-}_{s0}(2317)K^0(K^{*0})$, have the smallest branching ratios, which dropto as low as $10^{-10}\sim10^{-8}$.

$B_{(s)}\to D^*_{s0}(2317)P(V)$ decays in perturbative QCD approach