In a liquid ejection control device, an ejection tube section type acquisition unit discriminates an ejection tube section type of an ejection tube section mounted in a main body section, and acquires a fitted correspondence relationship fitting the discriminated ejection tube section type. A voltage amplitude setting unit sets a voltage amplitude of a drive voltage waveform so as to cause kinetic energy to meet an energy instruction value input by using an energy dial based on a rising index value related to rising of the drive voltage waveform and a repetitive frequency instruction value input by using a repetitive frequency dial with reference to the fitted correspondence relationship.
