PROBLEM TO BE SOLVED: To provide a gel production device which can produce stable gel, and to provide a gel production method.SOLUTION: The gel production device for producing the gel by making a first liquid and a second liquid C react with each other includes: a vessel 24 which accommodates the second liquid C a flow-through mechanism which makes the second liquid C flow in the vessel 24 an injection mechanism 20 having a nozzle plate 34 at which a nozzle 36 for injecting the first liquid to the flowing second liquid C by a liquid-droplet injection method is arranged and a gap plate 88 at which a through-hole 126 communicating with the nozzle 36 is formed. The gap plate 88 is arranged between the flow-through mechanism and the injection mechanism 20.
