Abstract: In this paper, on the basis of analyzed inserting resistance force of a shovel and its influence factors, the appraisal standard was presented. That is, parameters of a shovel was appraised by using spading soil energy of a shovel. And then using this standard, the parameters could be chosen by optimizing. And the three straight lines and one are shape was presented as its reasonable shape. In the end, these were verified by tested of model shovels.

Key words: 斗容量, 评价, 阻力