High-resolution gravity field mapping is fundamental for geophysical studies and resource exploration. Although terrestrial static gravimetry achieves microgal-level accuracy, it remains inefficient for field surveys and cannot be easily deployed in inaccessible areas, such as marine, mountainous, desert, and coastal zones. Satellite-based global gravitational models (e.g., EGM2008) have insufficient resolution for localized surveys. Current airborne gravity surveys predominantly employ relative gravimeters, which require calibration with absolute base stations and crossover flight corrections. In this study, we conducted crossvalidated airborne gravity surveys using dual atomic absolute gravimeters (AG-1 and AG-2), thereby achieving enhanced spatial resolution without the need for ground-based calibration. Two identically configured atomic gravimeters, installed on separate inertial stabilization platforms (ISPs), performed synchronized survey flights over a coastal area. Cross-validation along four survey lines achieved an external precision of 1.9-2.6 mGal at a spatial resolution of 3 km. A strong correlation was observed between the gravity values obtained by the two atomic gravimeters (Pearson correlation coefficient r > 0.98). This study confirmed the operational reliability of atomic gravimeters in airborne dynamic surveys through cross-validation, facilitating efficient and large-scale reconstruction of high-resolution gravity models.