[Object] To provide a particle sorting apparatus, a particle sorting method, and a program that are capable of efficiently sorting particles even when sizes of particles to be sorted are not uniform.[Solving Means] A particle sorting apparatus includes a charge section that imparts charges to at least a part of droplets discharged from an orifice from which a fluid stream is generated, and a charge control section that adjusts a charge amount to be imparted to the droplets by the charge section. Further, the charge control section is structured to adjust the charge amount according to sizes of particles included in the droplets.