The oilshale resources are very abundant with its reserve triple to oil reserve in the world. As the oil-gas resources become less and less, it is economic and feasible to mine the oilshales. This paper compares the traditional oilshale mining technology (dry distillation and fluidized combustion for power generation) and Shell's ICP (Insitu Conversion Process), with results indication ICP is much better in environment, cost and products. So China shall develop ICP to face the challenging energy consumption.