Under the background of high-quality development of China's satellite remote sensing technology, the multi-source satellite soil moisture products in the "standarization for satellites design and it's optimal applications" space engineering application face challenges such as inconsistent product specifications and limited collaborative application due to algorithm differences, sensor performance, and surface complexity. To address this core issue, this article takes the construction of a standardized and strictly quality-controlled soil moisture standard quantitative product (SSMP) as the core goal. It breaks through the traditional single-satellite verification mode and innovatively builds a standardized, multi-level soil moisture control system. It also proposes a large-scale accuracy verification process for SSMP based on the control system. This system provides an expandable standardized production framework and a systematic quality inspection path for multi-source satellite soil moisture products. It not only lays a methodological foundation for the subsequent large-scale collaborative application and integrated analysis of remote sensing soil moisture products, but also offers important theoretical support and practical reference for further enhancing the engineering application efficiency of multi-source satellite remote sensing data in fields such as agriculture, hydrology, and meteorology.