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In this paper we derive the restricted weighted maximal operator, defined by${\sup }_{k\in \mathbb{N}}\left(\left\vert \sigma_{k}F\right\vert/A^2_k\right)$ of Fej\'er means of Walsh-Fourier series andprove that the it is bounded from the martingale Hardy space $H_{1/2}(G)$ tothe Lebesgue space $L_{1/2}(G).$ The sharpness of this result is also proved.As a consequence we obtain some new and and well-know results.

Weighted maximal operators of Fej\'er means of Walsh-Fourier series in the martingale Hardy space $H_{1/2}$