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35 rare images of the infamous Japanese experiment unit 731 in China

Unit 731 (731部隊), based at the Pingfang district of Harbin and led by the infamous Japanese microbiologist Shiro Ishii, was a covert biological warfare research and development unit of the Imperial Japanese Army that undertook human experimentation during the Second Sino-Japanese War (1937–1945) and World War II.

Featured image: A photograph released from Jilin Provincial Archives, which, according to Xinhua Press, “shows personnel of ‘Manchukuo’ attend a ‘plague prevention’ action which indeed is a bacteriological test directed by Japan’s ‘Unit 731’ in November 1940 at Nong’an County, northeast China’s Jilin Province.”

What was the Unit 731

At least 12,000 men, women, and children were killed during the experimentation conducted by Unit 731 at the camp based in Pingfang alone.

Related articles:  Names of members of infamous Unit 731 released by the National Archives of Japan, Rare images of the infamous Japanese experiment unit 731 in China – Second Part – Graphic contentMen Behind the Sun by Mou Tun-Fei (The film is a graphic depiction of the war atrocities committed by the Japanese at Unit 731)

Prisoners of war were subjected to vivisection without anesthesia.

Vivisections were conducted on detainees after infecting them with various diseases. 

Scientists performed invasive surgery on prisoners, removing organs to study the effects of disease on the human body.

Shiro Ishii

The experiments were conducted while the patients were alive because it was feared that the decomposition process would affect the results.

Human targets were used to test grenades positioned at various distances and in different positions.

Flame throwers were tested on humans.

Humans were tied to sticks and rods and used as targets to test germ-releasing bombs, chemical weapons, and explosive bombs.

Prisoners were injected with inoculations of disease, disguised as vaccinations, to study their effects.

To study the effects of untreated venereal diseases, male and female prisoners were deliberately infected with syphilis and gonorrhea, then studied.

Prisoners were infested with fleas to acquire large quantities of disease-carrying fleas to study the viability of germ warfare.

Plague fleas, infected clothing, and infected supplies encased in bombs were dropped on various targets. 

Resulting cholera, anthrax, and plague were estimated to have killed around 400,000 Chinese civilians.

Tularemia was tested on Chinese civilians. (Source: Wikipedia)

Unit 731 images

Victims of an attack during the Sino-Japanese War lie strewn on the ground in Shanghai.

Related article: Japanese officer performing seppuku during World War II

Source: wikipedia,,, enviromental graffiti,

Topic: causes of unit 731, what did they do at Unit 731


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19 thoughts on “35 rare images of the infamous Japanese experiment unit 731 in China”

    • That’s not wrong, in the end Japan suffered many casualties among the civilians…What we all should complain is the fact that americans didn’t punished many war criminals, like Shirō Ishii, the mastermind (or one of them) of the Unit 731. He died in 1959, and he didn’t pay for his crimes because americans wanted the data of the experiments! Of course the japanese government was guilty too, because they didn’t prosecute any of them.
      So OBama didn’t honor those war criminals, he honored the civil victims in Japan.

          • It’s a long story. When you come in to an ER with extreme frostbite and they know exactly to treat you. They know exactly what frostbite does to the skin, tissues, etc. How it progresses and at what stage. Because of this information they could come up treatments. Where did they find out about the severe effects of frostbite? UNIT 731. Sad…but true. And this is just one example.

            A lot of their experiments were to duplicate severe battle feild injuries. i.e. loss of limbs. Did you notice how much battle feild triage improved from WWII to the Korean War. Just 6 years seperate these two wars and yet medical surgical knowledge leaped for the MASH units. Where do you think this info came from?

  1. I don’t know! do you? Do you have prove? they are researching to KILL, not to SAVE!!! Did you see the picture of all the naked kids? Any medicine worth that? Without humanity, what is left in life!!!

  2. Sir:

    I’m sorry, but there’s absolutely no excuse, no justification that could justify what happened in Unit 731 and Unit 100. The cruelty and atrocity are beyond human understanding. I repeat THERE IS NO JUSTIFICATION WHATSOEVER for what took place in Harbin, China.

    IT IS EVIL–SHEAR AND PURE EVIL. Shame to the Japanese who still try to cover it up or white wash their evil past !!!

  3. It saddens me to hear this truth about the attrocities that were done in Unit 731. This is no different than in Germany. This is and was EVIL. I personally don’t care about the medical GAINS that have been achieved. Unfortunately EVERY EVIL has their way of justifying WHY they do what they do. Only GOD can forgive them. We must REMEMBER the reason WHY. Hitler; super race, Japanese; ??,.
    These days our younger generation only wants to whitewash the past. We are to learn from their past mistakes so they are NOT repeated.

  4. everything about this point in time is a horror story. The really sad part of it all is China is literally doing things on this level in the name of organ transplants on demand as we speak today in 2020.

  5. Are you people nuts, these VICTIMS are individuals with the exact same feelings of pain and terror and shock as you or I would experience, they probably had families and homes once, there is categorically no reason or excuse to put any human being through this kind of torture, I am utterly appalled and extremely upset by this atrocity and I believe that every one should be also, and as for medical knowledge we have found answers and treatments in ways that don’t destroy the profound right of every human to live and to live without being tortured


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