This article describes the buckling load of functionally graded porous plate with parabolic variable thickness (FGP-PVT) installed on Pasternak foundations. This construction also makes use of the sinusoidal porous distribution. With springer stiffness (𝑘₁) and shear stiffness (𝑘₂) as functions of the deflection and its Laplacian, the Pasternak foundation is a two-parameter model that depicts the foundation reaction. It is expected that the outcomes will offer information for the design of FGP-PVT plates in real-world engineering applications.