文章在矿井建设的工程造价问题里引入BP神经网络和未确知数学等方法,在矿井工程建设的历史造价的前提下,预算拟建矿井建设的工程造价,为是否用此方案进行矿井工程建设提供数据支持。引入这些数学方法,得出较为准确的工程造价,针对矿井工程的自身特点,在矿井工程建设的全部生命周期里能够有效控制矿井工程造价。 This paper introduces the BP neural network and unascertained mathematics in the project cost of mine construction. Under the premise of the historical cost of mine construction, the project estimates the construction cost of the mine to be built and whether it is used for mine construction Provide data support. The introduction of these mathematical methods leads to a more accurate project cost. According to the characteristics of mine engineering, the mine project cost can be controlled effectively during the entire life cycle of mine construction.