We numerically demonstrate repetition rate multiplicable soliton microcomb generation using the phase-modulation pump scheme (PMS). Dissipative Kerr solitons are directly obtained avoiding the primary comb and chaotic modulation-instability stage and the repetition rate can be multiplied by changing the modulation frequency with fixed intensity. The PMS can not only help to stabilize emitted solitons with inhibited temporal drift against the Raman self-frequency shift effect, but also achieve soliton spacing equalization recovered from certain position fluctuations. Such approach can enable delicate manipulation on soliton behaviors, and provide a feasible route to soliton microcombs with even higher repetition rates and improved stabilities. © 2020 The Japan Society of Applied Physics.