An electrostatic charge image developing toner contains toner particles that contain a binder resin and resin particles, fatty acid metal salt particles externally added to the toner particles, and silica particles (A) that are externally added to the toner particles and contain a nitrogen element-containing compound containing a molybdenum element, in which a ratio NMo/NSi of Net intensity NMo of the molybdenum element measured by X-ray fluorescence analysis to Net intensity NSi of a silicon element measured by X-ray fluorescence analysis is 0.035 or more and 0.45 or less.