A particle analyzing apparatus comprising: a magnetic field generating section configured to subject an analyte particle (p) exhibiting crystallinity to magnetophoresis by generating a gradient of a magnetic flux density and applying a magnetic force to the analyte particle (p); a detection section configured to detect the analyte particle (p) subjected to magnetophoresis; a processor configured to acquire a magnetophoretic velocity and a particle diameter of the analyte particle (p) from a result of detection by the detecting section and acquire a volume magnetic susceptibility of the analyte particle (p) based on the magnetophoretic velocity and the particle diameter; and storage configured to store reference data indicating a relationship between a volume magnetic susceptibility and a particle diameter of each of possible known crystal forms of the analyte particle (p), wherein the processor specifies a volume magnetic susceptibility corresponding to the particle diameter of the analyte particle (p) for each of the possible known crystal forms from the reference data, specifies a volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) from among the specified volume magnetic susceptibilities of the possible known crystal forms, and acquires as the crystal form of the analyte particle (p) a crystal from corresponding to the volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) among the possible known crystal forms. a magnetic field generating section configured to subject an analyte particle (p) exhibiting crystallinity to magnetophoresis by generating a gradient of a magnetic flux density and applying a magnetic force to the analyte particle (p); a detection section configured to detect the analyte particle (p) subjected to magnetophoresis; a processor configured to acquire a magnetophoretic velocity and a particle diameter of the analyte particle (p) from a result of detection by the detecting section and acquire a volume magnetic susceptibility of the analyte particle (p) based on the magnetophoretic velocity and the particle diameter; and storage configured to store reference data indicating a relationship between a volume magnetic susceptibility and a particle diameter of each of possible known crystal forms of the analyte particle (p), wherein the processor specifies a volume magnetic susceptibility corresponding to the particle diameter of the analyte particle (p) for each of the possible known crystal forms from the reference data, specifies a volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) from among the specified volume magnetic susceptibilities of the possible known crystal forms, and acquires as the crystal form of the analyte particle (p) a crystal from corresponding to the volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) among the possible known crystal forms. specifies a volume magnetic susceptibility corresponding to the particle diameter of the analyte particle (p) for each of the possible known crystal forms from the reference data, specifies a volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) from among the specified volume magnetic susceptibilities of the possible known crystal forms, and acquires as the crystal form of the analyte particle (p) a crystal from corresponding to the volume magnetic susceptibility closest to the volume magnetic susceptibility of the analyte particle (p) among the possible known crystal forms.