To address the accuracy degradation in far-field reconstruction caused by phase information absence during high-frequency antenna near-field measurements, this paper proposes a phase-less near-field to far-field transformation method based on dual-spherical sampling. Building upon the equivalent magnetic current theory, the proposed method achieves equivalent current reconstruction and far-field retrieval through a dual-spherical truncated amplitude flow algorithm. The implementation features three key innovations: first, row scaling preprocessing of the measurement matrix ensures algorithm convergence; second, Armijo line search optimization enhances iteration step selection efficiency for solution approximation; third, an alternating sampling mechanism between dual spherical surfaces effectively reduces measurement matrix correlation while expanding satial sampling dimensions. Simulation results demonstrate that,for antennas of different types and sizes,using only dual-spherical near-field amplitude data, the proposed method achieves precise far-field reconstruction within ±60° of the main lobe, maintaining amplitude errors below 0.5 dB.The results of the calculations are in good agreement in the actual near-field measurements.This approach provides an effective solution for phase-less near-field measurements and demonstrates practical engineering value.