Mr Trump recently said he would be willing to meet North Korean leader Kim Jong-un, and has also proposed withdrawing US troops from South Korea.
Analysts said the editorial was not official policy but likely reflected Pyongyang's thinking.
'Dull' Clinton
The essayist, Han Yong-mook - depicted as a Chinese North Korean researcher - said Mr Trump's strategy on US troops would make the North's "Yankee Go Home" vision work out.
North Korea has since quite a while ago needed US troops to leave the Korean promontory.
"The day when the motto turns out to be genuine would be the day of Korean Unification," said the publication, initially reported by site NK News.
It proposed Mr Trump's announcement that he would not like to get required in any contention amongst North and South Korea was "lucky from North Koreans' viewpoint".
The author additionally said US voters ought to dismiss Democratic competitor Hillary Clinton, calling her "dull".
"The president that US residents must vote in favor of is not that dull Hillary, but rather Trump, who talked about holding direct discussion with North Korea," said Mr Han.
One North Korea eyewitness said the article was "exceptionally striking".
"As a matter of fact it is not precisely Pyongyang talking, but rather it is absolutely Pyongyang flying a kite, or trying things out", said Aidan Foster-Carter of Leeds University writing in NK News.
North Korea had not long ago rejected Mr Trump's proposition to examine Pyongyang's atomic system with Mr Kim as "only a signal".
"I think his (Trump's) thought of talk is jabber," So Se-pyong, North Korea's diplomat to the United Nations in Geneva, had told Reuters.
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