Multi-purpose experimental sample for rock and preparation method of multi-purpose experimental sample

The invention discloses a multi-purpose rock experimental sample and a preparation method thereof. The method comprises the following steps: inserting and attaching a rock representative sample into a sample pile; resin is poured into the inserted sample pile, and a poured sample is formed; curing the filled sample, cooling and taking out to obtain a cured bulk sample; and cutting, grinding and polishing the solidified bulk sample to obtain the rock multipurpose experimental sample. The method is used for preparing the soft and fragile rock sample of the shale, the defect that the shale is fragile and easy to expand is overcome in the sample preparation process, the prepared rock sample is firmly consolidated, effectively protected and reusable, and a planar sample is supported by mixing fine-fraction deposition and chemical deposition, so that the rock sample can be used for preparing the rock sample. Various optical microscopes are used in a combined mode, an electron microscope is applied, and multi-purpos