Abstract: Research on foundation bearing capacity and geological characteristics of Yanbian Helong is little, based on geotechnical test, heavy dynamic penetration test and standard penetration test in situ testing method, Helong area often used gravel layer and weathered mudstone layer in engineering, got round gravel granular layer gradation, foundation bearing force characteristic value, de-formation modulus data, weathered mudstone foundation bearing capacity characteristic value of the data. The test dma for statistical analysis, draw Helong area round gravel layer foundation bearing force and draw round gravel layer foundation bearing force characteristic value, deformation modulus and heavy cone dynamic penetration hammer number linearly related to the conclusion, so as to establish the local geological conditions related to the empirical formula, empirical formula. To Helong area geotechnical engineering exploration ensure access to reliable, applied geotechnical parameters provide experience and evidence, provide experience for similar area.