There are different voices about his death. Some say he died of illness, while others say he was murdered. It is said that a peasant found some pottery warrior pieces while he was digging a well.

if you want to konw it all ,it will be a long long story.you can read the book Shihchi.it's the histories in form of biographies written by a officials named Sima Qian 2100 years ago.

He was poisoned by Mercury pills that his court physicians fed him.
These pills were supposed to make him 'immortal'.
But it is said he died on a tour through Eastern China

he died whilst travelling through East China on a tour. He died from poisoning. When he was looking for the elixir of life his scientists made a concoction for him, sadly this contained high quantaties of mercury and he died from it later in life.

Two farmers discovered his tomb whilst digging a well. They saw a warrior and told people and the news spread and all the archaeoligist - sorry i might have spelt it wrong- came to the area and so yea..... now its a massive tourist attraction and those poor farmers got nothing at all.

Hope you have a great day !