The invention relates to the technical field of papermaking, in particular to a papermaking process. The process adopts a thermofiner, the thermofinercomprises a feeding hopper, a first fixed casing,a conveying mechanism, a second fixed casing, a first grouting mechanism, a second grouting mechanism, a steam mechanism and a transmission mechanism, the feeding hopper and a conveying screw carry out material transportation, the steam mechanism is arranged at the bottom of the conveying screw, materials are preheated through steamwhile the materialsare conveyed,and it is ensured that the materials entering the grouting mechanisms are preheated by the steam. When the materials enter the first grouting mechanism, the first grouting mechanism is driven to rotate by using the transmission mechanism to achieve effective crushing of the materials. After the materialsare crushed and grouted by the first grouting mechanism, the second grouting mechanism can be used for further effective grindingand grouting, wood raw materials are effectively ground into a slurry, and the grinding efficiency and effect are improved.