Senator Kitching suffered a suspected coronary heart assault in Melbourne right this moment, with shattered colleagues paying tribute tonight.
A former lawyer, Senator Kitching served the Senate from 2016 after filling the seat vacated by Stephen Conroy's retirement.
On the time of her loss of life, Senator Kitching was the chair of the Overseas Affairs, Defence and Commerce References Committee.
Labor chief Anthony Albanese was amongst these to pay tribute after her loss of life.
"The Labor household is in shock tonight on the tragic information that our buddy and colleague Senator Kimberley Kitching has died immediately in Melbourne," Mr Albanese wrote on Twitter.
"My honest condolences to her household.
"Kimberley will likely be missed by us all."
Shut buddy and former federal Labor chief Invoice Shorten shared a poignant tribute to Senator Kitching this night.
"With a desolate coronary heart I share the information that Kimberley Kitching has handed away," Mr Shorten wrote.
"Kimberley suffered a coronary heart downside Thursday night in Melbourne and handed quickly after.
"Her passing is an immense loss to Labor and the nation.
"In addition to her innumerable accolades she has been an exquisite buddy to myself, my spouse Chloe and our household.
"To know Kimberley was to be touched not simply by her serene mind however her unimaginable heat and vivacity.
"As a Labor Senator she was relentlessly energetic and conscientious just lately leading to worldwide recognition for her human rights work.
"Our hearts exit to her husband Andrew, her household and family members."
He included a passage from William Shakespeare's Macbeth.
Deputy Labor chief Richard Marles mentioned he had recognized Senator Kitching for greater than 30 years.
"Phrases can not categorical the unhappiness of this second," he mentioned.
"Kimberly knew what she stood for and he or she introduced a readability of thought to her function within the Senate that was uncommon, she was a fierce advocate for all that she believed in.
"The Labor Social gathering, the Senate and the nation have misplaced a singular energy."
Prime Minister Scott Morrison additionally shared his condolences to Senator Kitching's family members.
"The loss of life of Senator Kimberley Kitching, at simply 52, is a deep and horrible shock," Mr Morrison mentioned in an announcement.
"Senator Kitching was a severe parliamentarian who had a deep curiosity in Australia's nationwide safety.
"She had a ardour about Australia's nationwide curiosity and argued for it.
"She demonstrated that her ardour for her nation was at all times higher than any partisan view.
"She clearly cherished her nation and it genuinely confirmed.
"I got here to significantly respect the way in which Senator Kitching approached the problems.
"Senator Kitching was a training Catholic and we witnessed her genuine religion within the lifetime of the Parliament.
"She adopted her conscience and was fearless and I admired that.
"She was revered by these on either side of the Parliament - she was a parliamentarian within the truest sense.
"Senator Kitching was deeply revered by the Coalition.
"To Senator Kitching's household I prolong the sympathies of the Authorities."
Deputy Prime Minister Barnaby Joyce mentioned he was "deeply, genuinely and so terribly upset to listen to the tragic information a couple of pricey individual and pricey buddy".
Senator Kitching was born in Brisbane and moved to Melbourne in 1995.
Earlier right this moment, Senator Kitching had shared a message of assist for these affected by flooding in Queensland and NSW.
"My ideas are with these in New South Wales and Queensland who've misplaced their houses, companies, family members," a submit on Senator Kitching's Fb account learn.
"Having grown up in Queensland, I do know the chaos floods could cause.
"The footage of neighborhood members, flood victims, SES volunteers and ADF personnel stepping as much as contribute to the rescue and, in some locations, the restoration from the floods, is poignant.
"It jogs my memory of the camaraderie that defines the Australian character."
Senator Kitching is survived by her husband Andrew.