Pliskova showcased the same form that saw her win a second Brisbane International trophy, requiring just one hour and nine minutes to progress.
The Czech pair exchanged breaks early on before Muchova missed a chance on another break point in the seventh game which proved costly as Pliskova found her rhythm to serve out the opening set.
Karolina Muchova was beaten by Pliskova in her first-round match in Melbourne
Image credit: Getty Images
The former world No 1 raced into a 4-0 lead in the second as Muchova continued to struggle to win many points when facing Pliskova‘s first serve.
Indeed, the two-time Australian Open quarter-finalist restricted her opponent to just six points off her second serve across the two sets as Pliskova sealed victory with her second match point.
"I think I started really well today," she said afterwards on court. "I was feeling great, even in the warm-up!
"I think it's a good start. I'm happy I saved some time on court and didn't have to spend too much time here, but it's always tough to play a Czech girl. I would say I'm lucky because I'm always playing them at every tournament, so I'm happy that I'm through."