There are two difficult problems in basement rock reservoir research today; they are special tight lithology and fracture reservoir spaces. The reservoir spaces - fractures - in metamorphic rocks as a kind of basement rocks are closely related to dynamics. Tectonic dynamics is the main factor of forming fractures in tight basement rocks. The rock and mineral will remember the dynamics in the geological history. Based on the oriented core, the episodes and directions of dynamics in basement rock reservoirs may be recalled by the acoustic emission (AE) and petrofabric analysis. As is reconstructed using the above-stated principle, the Caotai metamorphic buried hill in the Damintun depression, Liaohe, was subjected to stresses of three episodes. The south and north ends of the buried hill were chiefly affected by nearly E-W compression, while the central part of the buried hill was chiefly affected by NE compression-shear. The development and directions of the fractures were in agreement with dynamics.