Particle imaging apparatus and particle imaging method

[Problem] Provided is a particle image-capturing device and a particle image-capturing method which enable a particle being imaged to be imaged with high quality while the processing speed of a measuring device is maintained. [Solution] A particle image-capturing device 10 is provided with: a flow path 100 for flowing a measurement sample containing a particle, the flow path 100 including a first flow path section 110, and a second flow path section 120 and a third flow path section 130 which are connected to downstream of the first flow path section 110; a particle detection unit 20 for detecting a particle flowing through the first flow path section 110; a particle sorting unit 30 capable of selectively adjusting the travel direction of the particle, which flows through the first flow path section 110, at least between the second flow path section 120 and the third flow path section 130 on the basis of the detection result provided by the particle detection unit 20; and a particle image-capturing unit 50 for imaging a particle flowing through the second flow path section 120.