The invention discloses a portable point inspection recording instrument for a wind turbine generator in the technical field of routing inspection for operation of wind turbine generators. The portable point inspection recording instrument is mainly composed of a CPU control module, a power module, a storage module, a communication module, an input and output module, an A/D conversion module, a data collecting module and a point inspection information management module. Besides a function of collecting and analyzing traditional data such as temperatures and vibration, functions of image collecting, audio collecting and the like are added, point inspection information can be fully digitalized, and meanwhile a wired and wireless communication function is achieved; the portable point inspection recording instrument further has a maintenance instructing function, technical data such as circuit diagrams, technical parameters and service handbooks of the wind turbine generator can be stored, instructions from a wind power plant control center can be received in real time, some emergency problems can be conveniently solved by point inspection personnel, and intelligence and integration of point inspection and maintenance are achieved.