The Shanbo Stone has long been one of the varieties in larderite. Its exquisite texture and delicate feature make it popular, and the "Peanut Cake" has important significance for its identification and classification. In this paper, the authors investigated the Shanbo Stone and its "Peanut Cake" through detection and experimental analysis. The detection results by optical microscope and scanning electron microscope (SEM) with energy dispersive spectrometer (EDS), laser Raman spectroscopy (LR), Infrared spectrometer(IR) and electron microprobe analysis (EPMA) show that a large number of microcrystalline anatases are the main factors influencing the white "Peanut Cake", and the main impurities in the red "Peanut Cake" are iron minerals, which form disseminated red patches later. Quartz is distributed in some white "Peanut Cake", and pyrophyllite is also observed in part of white "Peanut Cake". Besides, the complete crystal anatase dispersed in Shanbo stone constitutes a visible gold like reflective point.