This study mainly discusses green supply chain management models with various quantity discounts functions. The formulated supply chain management model considers forward supply chain and reverse logistics. The formulated models also address quantity discount policies often used in real practice. The objective of the green supply chain models is to minimize total cost subject to various flow and capacity constraints. To make the green supply chain models more practical, this research builds and analyzes the models with various quantity discounts functions and derives optimal prices and ordering quantities of each stage. Some numerical examples are also presented to illustrate the correctness and capability of the proposed models.