生物多样性是我们生存和发展的基础。我们的衣、食、住、行及文化生活都与生物多样性维持密切的关系。直接价值（Direct Value）：是人们直接获得用生物资源所变成有用的价值。包括消费使用价值和生产使用价值的这两个方面。消费使用价值：指不经过市场流通而是直接消费的一些自然产品。生物资源对于当地居住的人民十分重要。人们从中获得一些生活必需品。尤其在一些经济不发达地区，需要用这种方式来维持生计。
例如：
全世界大约有80％的人使用进口药材。
b. 木材和动物粪便提供了大部分国家主要燃料的80%~90%。
1.间接价值：生物资源的间接价值是与生态系统功能有关，它并不表现在国家的核心体制上，但价值可能远超于直接价值。而且直接价值常常源于间接价值，因为收获的动植物物种必须有它们的生存环境，它们是生态系统的组成成分。没有消费和生产使用价值的物种可能在生态系统中起着重要作用，并供养那些有使用和消费价值的物种。生物多样性的间接价值包括非消费性使用价值、选择价值、存在价值和科学价值四种价值。
①非消费性使用价值：保护生物资源可以为人类社会带来日益增长的利益，这种效益因地域和物种的不同而各不相同。
②选择价值：保护野生动植物资源，可能越多的基因，可以为农作物或家禽，家畜的育种提供更多的可供选择的机会。例如：家猪与野猪杂交，培育形成了瘦肉型猪的新品种。也许我们的子孙后代能发现其价值，找到利用它们的途径。因此多保存一个物种，就会为我们的后代多留下一份宝贵的财富。
③存在价值：有些物种，尽管其本身的直接价值很有限，但它的存在能为该地区人民带来心理上的满足。例如：中国的大熊猫，金丝猴，褐马鸡等是中国的特产珍稀动物，人们非常珍惜，熊猫已成为中国的象征。
④科学价值：有些动植物物种在生物演化历史上处于十分重要的地位，对其开展研究有助于搞清生物演化的过程。
Biodiversity is the basis of our survival and development. Our clothing, food, shelter, transportation and cultural life are closely related to biodiversity. Direct value: it refers to the value that people directly obtain and use biological resources to become useful. It includes consumption use value and production use value. Consumption use value: refers to some natural products that are directly consumed without market circulation. Biological resources are very important to the local people. People get some necessities from it. Especially in some economically underdeveloped areas, it is necessary to make a living in this way. For example:About 80% of the people in the world use imported medicinal materials.b. Wood and animal waste provide 80% to 90% of the country's main fuels.1. Indirect value: the indirect value of biological resources is related to the ecosystem function. It does not appear in the core system of the country, but the value may be far more than the direct value. Moreover, direct value often comes from indirect value, because the harvested plant and animal species must have their living environment, and they are components of the ecosystem. Species with no consumption and production use value may play an important role in the ecosystem and support those with use and consumption value. The indirect value of biodiversity includes non consumption use value, choice value, existence value and scientific value. ① Non consumption use value: the protection of biological resources can bring increasing benefits to human society, and the benefits vary from region to region and species. ② Selection value: to protect wild animal and plant resources, more genes may be available, which can provide more choices for crops, poultry and livestock breeding. For example: the crossbreeding of domestic pigs and wild boars has produced a new breed of lean meat pigs. Maybe our future generations will find their value and find ways to use them. Therefore, the preservation of one more species will leave a precious wealth for our future generations. ③ Existence value: some species, although their direct value is limited, can bring psychological satisfaction to the people in the region. For example: China's giant panda, golden monkey, brown eared pheasant and so on are China's special products and rare animals. People cherish them very much. Panda has become a symbol of China. ④ Scientific value: some animal and plant species are in a very important position in the history of biological evolution, and the research on them will help to understand the process of biological evolution.