Electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method

An electrostatic charge image developer comprising:

• a toner containing a toner particle and an external additive;
• and
• a carrier containing a magnetic particle and a resin layer covering the magnetic particle, wherein
• the toner particle has a surface property index value of 2.0 or more and 2.8 or less,
• the carrier has a surface having a ratio B/A of a surface area B to a planar view area A of 1.020 or more and 1.100 or less, the planar view area A and the surface area B being obtained by three-dimensional analysis of the surface of the carrier,
• the resin layer contains inorganic particles having an average particle diameter of 4 nm or more and 93 nm or less,
• a content of the inorganic particles contained in the resin layer is 10 mass % or more and 60 mass % or less, and
• average thickness of the resin layer is 0.5 μm or more and 1.5 μm or less.