Inkjet image-forming method

An inkjet image-forming method comprising:

• forming an image by ejecting a gel ink at a first coverage rate from a plurality of nozzles arranged along a first direction to a recording medium moving in a second direction crossing the first direction,
• the first coverage rate being less than 100% and set to allow dots of newly ejected gel ink to unite with dots of the gel ink already landed on the recording medium,
• the gel ink containing a crystalline gelling agent, a colorant, and a polymer dispersant,
• a content of the polymer dispersant in the gel ink being from more than 20% by mass to 70% by mass based on a weight of the colorant,
• the gel ink having a contact angle of 15 to 30° on the recording medium,
• the inkjet image-forming method satisfying the following formula:
• 2.7≦D/(2.54×104/R)≦3.5
• wherein R is a resolution (dpi) of the image to be formed, and D is a diameter (μm) of ink droplet dots landed on the recording medium.