The temperature dependence of linear crystal growth rate (G) for various polymers shows a bell shape with the maximum growth rate (G(max)). The G(max) shows remarkable molecular weight dependence. The G(max) was formulated on the basis of a crystallization theory, both for Arrhenius and WLF expressions in the molecular transport term. The plots of the reduced growth rate (G/G(max)) against the reduced temperature (T/T-cmax) for a given polymer showed a single master curve without molecular weight dependence. The ratio of G(0)/G(max) gave a constant value for each polymer, indicating a material constant. On the basis of G(max) for many polymers, a universal master curve was observed when the ratio of ln(G/G(max))/ln(G(0)/G(max)) was plotted against the reduced temperature (T/T-cmax).