Photodissociation spectroscopy of the Mg+-pyridine complex in the spectral range of 240-440 nm is presented in the paper. Mass spectrometry of the complex exhibits the persistent product Mg+ from non-reactive quenching throughout the whole wavelength range. A minor charge transfer (CT) product C5H5N+ is also observed when the laser wavelength is shorter than 249nm. The action spectrum of the complex was recorded as a function of laser wavelength. Three pronounced bands with a symmetrical feature were observed in the action spectrum. The optimized geometry of Mg+-pyridine is characterized by the linkage of Mg+ to the N atom of the molecule possessing a C2v symmetry with Mg on the C2 axis of the complex. The calculated vertical absorption spectrum of the complex using the optimized structure of its ground state agrees qualitatively with the observed action spectrum. The relative yield of the CT product shows a threshold feature and rises with the shortening of the laser wavelength. The action spectrum of the CT product has a nearly similar feature to that of the total ion in the wavelength range of 240-250nm. Based on the experimental results, the predissociative CT reaction mechanism is invoked to account for the yield of the photoinduced CT product C5H5N+.