After the raising of labor productivity, whether commodity value amount is inversely changed (inversely proportioned) or positively changed (positively proportioned) becomes a debate focus of Marxism labor value theory in recent years but the scientific conclusion of Marxism labor value theory is that it is “inversely proportioned”, however, the school who states that it is positively proportioned about this conclusion inevitably results in overthrowing the labor value theory. In this dispute, there are scholars who have overall discussed and criticized the viewpoint about that it is positively proportioned but there are still scholars who try to defend the school who states that it is positively proportioned. However, this defending is not successful, which indicates that their examples in the “proof” are even based on the deviation of calculation.