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We investigate the extended phase space thermodynamics of nonsingular-AdSblack holes minimally coupled to clouds of strings in which we consider thecosmological constant ($\Lambda$) as the pressure ($P$) of the black holes andits conjugate variable thermodynamical volume ($V$) of the black holes. Owingto the background clouds of strings parameter ($a$), we analyse the Hawkingtemperature, entropy and specific heat on horizon radius for fixed-parameter$k$. We find that the strings clouds background does not alter small/largeblack hole (SBH/LBH) phase transition but occurs at a larger horizon radius,and two second-order phase transitions occur at a smaller horizon radius.Indeed, the $G$--$T$ plots exhibit a swallowtail below the critical pressure,implying that the first-order phase transition is analogous to the liquid-gasphase transition at a lower temperature and lower critical pressure. To furtherexamine the analogy between nonsingular-AdS black holes and a liquid-gassystem, we derive the exact critical points and probe the effects of a cloud ofstrings on $P-V$ criticality to find that the isotherms undergo liquid-gas likephase transition for $\tilde{T}\,<\,\tilde{T}_c$ at lower $\tilde{T}_c$. Wehave also calculated the critical exponents identical with Van der Walls fluid,i.e., same as those obtained before for arbitrary other AdS black holes, whichimplies that the background clouds of strings do not change the criticalexponents.

Thermodynamic stability and P-V criticality of nonsingular-AdS black holes endowed with clouds of strings