Under weak grid conditions, the grid impedance and phase-locked loop (PLL) affects the robust stability of grid-connected inverters, leading to harmonic resonance, or even instability in the system. In this paper, a impedance remodeling control method is proposed to enhance the stability of grid-connected inverters with high grid impedance. First, the output impedance of the PLL is reshaped by connecting a complex-coefficient filter (CCF) structure in series with the input of a typical SRF-PLL. The purpose is to broaden the range of feasible phase angles that can maintain grid-connected inverters stability. Then, the output impedance of the current control loop is reshaped, to ensure that the system has sufficient phase margin. The introduction of the impedance reshaping control method enables the grid-connected inverter to adapt to a wider grid impedance range, which more friendly to weak grid. Experimental measurements verify the proposed strategy.