A fluorescence image analyzer for analyzing a fluorescence image of a cell contained in a sample, the cell having a target portion as a measurement item labelled with a labeling reagent, the fluorescence image analyzer comprising: a light source (120, 121, 122, 123) configured to apply light to the sample; an imaging unit configured to capture first and second fluorescence images of the cell by which fluorescence is generated by applying the light, the fluorescence being generated by first and second labeling reagents; and a processing unit programmed to process the captured first and second fluorescence images, wherein the processing unit is programmed to: obtain a bright point pattern of fluorescence of the cell from a composite image obtained by overlapping the captured first and second fluorescence images; select at least one bright point pattern, from among a plurality of bright point patterns that include one or more positive patterns previously associated with at least one of the measurement item or the labeling reagent; and determine whether the cell is an abnormal cell having chromosomal abnormality by determining what positive pattern, among the selected at least one bright point pattern, corresponds to the obtained bright point pattern of the cell, based on comparing the obtained bright point pattern of the cell and the selected at least one bright point pattern, the fluorescence image analyzer further comprises: a display unit; a reading unit configured to read identification information on a storage box in which the labeling reagent is stored, or identification information on a document regarding the labeling reagent, the identification information including a bright point pattern associated with the labeling reagent; and a storage unit configured to store at least one bright point pattern associated with the labeling reagent, and when the identification information read by the reading unit includes a bright point pattern different from the at least one bright point pattern stored in the storage unit, the processing unit is programmed to cause the display unit to display a registration screen for registering information regarding the different bright point pattern. a light source (120, 121, 122, 123) configured to apply light to the sample; an imaging unit configured to capture first and second fluorescence images of the cell by which fluorescence is generated by applying the light, the fluorescence being generated by first and second labeling reagents; and a processing unit programmed to process the captured first and second fluorescence images, wherein the processing unit is programmed to: obtain a bright point pattern of fluorescence of the cell from a composite image obtained by overlapping the captured first and second fluorescence images; select at least one bright point pattern, from among a plurality of bright point patterns that include one or more positive patterns previously associated with at least one of the measurement item or the labeling reagent; and determine whether the cell is an abnormal cell having chromosomal abnormality by determining what positive pattern, among the selected at least one bright point pattern, corresponds to the obtained bright point pattern of the cell, based on comparing the obtained bright point pattern of the cell and the selected at least one bright point pattern, obtain a bright point pattern of fluorescence of the cell from a composite image obtained by overlapping the captured first and second fluorescence images; select at least one bright point pattern, from among a plurality of bright point patterns that include one or more positive patterns previously associated with at least one of the measurement item or the labeling reagent; and determine whether the cell is an abnormal cell having chromosomal abnormality by determining what positive pattern, among the selected at least one bright point pattern, corresponds to the obtained bright point pattern of the cell, based on comparing the obtained bright point pattern of the cell and the selected at least one bright point pattern, the fluorescence image analyzer further comprises: a display unit; a reading unit configured to read identification information on a storage box in which the labeling reagent is stored, or identification information on a document regarding the labeling reagent, the identification information including a bright point pattern associated with the labeling reagent; and a storage unit configured to store at least one bright point pattern associated with the labeling reagent, and a display unit; a reading unit configured to read identification information on a storage box in which the labeling reagent is stored, or identification information on a document regarding the labeling reagent, the identification information including a bright point pattern associated with the labeling reagent; and a storage unit configured to store at least one bright point pattern associated with the labeling reagent, and when the identification information read by the reading unit includes a bright point pattern different from the at least one bright point pattern stored in the storage unit, the processing unit is programmed to cause the display unit to display a registration screen for registering information regarding the different bright point pattern.