With the aim of protecting ancient Chinese wooden buildings,classification and statistical methods were used to analyze typical aseismic construction problems encountered in Chinese wood buildings of Ming and Qing Dynasty.Based on survey results of a large number of ancient Chinese wooden buildings,typical aseismic construction problems are summarized,the causes are analyzed,and the corresponding strengthening methods were proposed.By analysis typical examples,strengthening techniques are further demonstrated.Results show that a numbers of Chinese ancient wooden building parts,such as columns,toukung (bracket sets),tenonmortise,joints,beams,roof and so on are easily subject to cracking,decay,deformation and disconnection.They cause problems that affect the aseismic behavior of the structure.These problems are closely related to constitution characteristics of ancient Chinese wooden structures,the material properties of wood,the construction process and preservation conditions.By reasonable and effective reinforcement of all these features,the damage caused by earthquake can be minimized or prevented.