The invention provides an upgrading process of a forming material containing low-order coal and rubbish. The upgrading process includes: evenly mixing low-order coal powder with rubbish powder prior to pelletizing into particles; mixing the particles with an assistant to form a mixture; performing extrusion forming on the mixture to form the forming materials; subjecting the forming materials to upgrading treatment to obtain raw gas, tar, crude benzene and coke; wherein the assistant is medium-order coal, a mixture of the medium-order coal with low-order coal, an organic binding agent or a mixture of the organic binding agent with the low-order coal. By the arrangement, raw material cost of oil gas and coke products can be lowered, resource utilization of the rubbish can be further realized efficiently, and considerable economical benefits and certain social benefits can be achieved; the problem about limited application of the rubbish due to nonexistence of large-scale industrial equipment in the prior art is solved, shortcomings that an existing stamp-charging coke oven is low in utilization and surplus in upgrading industrial capacity are overcome.