This paper studies the integrated reservoir reconstruction technology based on geomechanics and fracturing engineering to improve development efficiency, and deepen the basic research on fracture scale control and optimization, fracture conductivity and matrix imbibition displacement mechanism. The multifunctional acid erosion crack diversion system can simulate the rheology, filtration, friction, acid reaction rate, acid erosion diversion ability and other properties of acid solution under engineering conditions in the laboratory, and provide test basis for field construction. The multi-functional acid etch crack diversion system was studied, such as acid pressing mode, acid fluid type, acid fluid injection mode, etc. Further, the multi-functional acid erosion fracture diversion system can be used for the evaluation experiment of strong acid fluid in reservoir reconstruction such as fracturing and acidification, and simulate the shear fluidity, flow friction and acid erosion fracture-forming ability of the acid fluid system under certain injection conditions, providing a basis for optimizing the acid fluid formulation for reservoir reconstruction. Better solve the technical problems encountered in tight oil and gas reservoir reconstruction.