Abstract: Under the background of the continuous growth of global energy demand and the deepening of international oil and gas resources development, fractured reservoirs have become the key target of oil and gas exploration and development. Accurate identification and effectiveness evaluation of fractures are the core elements that determine the exploration and development effectiveness and productivity efficiency of fractured reservoirs. This paper systematically reviews the research progress of reservoir fracture evaluation based on logging data from three aspects : fracture type and characteristics, fracture development evaluation parameters, fracture identification and effectiveness evaluation methods. The reservoir fracture evaluation technology is divided into two categories : qualitative and quantitative identification of fractures based on single logging data, and comprehensive evaluation of fracture effectiveness based on geomechanics and multi-parameter coupling. Logging identification can obtain geometric parameters such as fracture occurrence, density, opening and filling. Effectiveness evaluation can analyze fracture seepage capacity, mechanical opening state and productivity contribution potential. At present, the fracture evaluation technology has formed a multi-method system. How to establish a unified and quantitative fracture identification and evaluation system suitable for deep, complex and unconventional reservoirs is the core problem that needs to be solved in this field. Integrating multi-logging technology, coupling geomechanical parameters, and combining artificial intelligence to build a multi-dimensional evaluation model is the future development trend of fracture identification and effectiveness evaluation.