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All-electrical and programmable manipulations of ferromagnetic bits are highly pursued for the aim of high integration and low energy consumption in modern information technology.Methods based on the spin-orbit torque switching in heavy metal/ferromagnet structures have been proposed with magnetic field,and recently are heading toward deterministic switching without external magnetic field.Here we demonstrate that an inplane effective magnetic field can be induced by an electric field without breaking the symmetry of the structure of the thin film,and realize the deterministic magnetization switching in a hybrid ferromagnetic/ferroelectric structure with Pt/Co/Ni/Co/Pt layers on PMN-PT substrate.