Strained Ge attracts attention of researchers for its high mobility and compatibility with Si technology. Based on the valence band model for compressively strained Ge/(001)Si1-xGex, the relationships between hole scattering, mobility, and Ge content (x) are established in this paper, including ionized impurity, acoustic phonon, non-polar optical phonon, total scattering rates, and the averaged and directional mobility of holes. Our quantitative data gained within the models can provide valuable references for the research of modified Ge materials physics and the design of the related devices.