假山是园林中以造景为目的，用土、石等材料构筑的山。假山具有多方面的造景功能，如构成园林的主景或地形骨架，划分和组织园林空间，布置庭院、驳岸、护坡、挡土，设置自然式花台。还可以与园林建筑、园路、场地和园林植物组合成富于变化的景致，借以减少人工气氛，增添自然生趣，使园林建筑融汇到山水环境中。因此，假山成为表现中国自然山水园的特征之一。与中国传统的山水画一脉相承的假山，贵在似真非真，虽假犹真，耐人寻味。
Rockery is a kind of mountain built with soil, stone and other materials for the purpose of landscape construction. Rockery has many functions, such as forming the main landscape or terrain skeleton of the garden, dividing and organizing the garden space, arranging the courtyard, revetment, slope protection, earth retaining, and setting the natural flower stage. It can also be combined with landscape architecture, Garden Road, site and garden plants to form a varied landscape, so as to reduce the artificial atmosphere, add natural interest, and integrate the landscape architecture into the landscape environment. Therefore, rockery has become one of the characteristics of Chinese natural landscape garden. The rockery, which is in the same line with the traditional Chinese landscape painting, lies in the fact that it is not true, although it is still true and intriguing