第一章：长安——丝路的起点与帝国贸易枢纽 / Chapter 1: Chang’an: The Starting Point of the Silk Road and the Imperial Trade Hub

1970年秋，西安南郊何家村的基建工地上，考古队员的铁锹碰碎了一个唐代陶罐的瞬间，金饼、银铤、鎏金器皿散落一地，其中最引人注目的，是一枚stamped着萨珊波斯库思老二世头像的银币，旁边摆着一只刻有粟特文铭文的银盘——这两件来自中亚的器物，在埋藏了1200多年后，再次把长安和撒马尔罕之间那条横跨欧亚的商道，拉到了世人面前。

In the autumn of 1970, when the shovels of archaeological workers struck a Tang dynasty pottery jar at a construction site in Hejiacun, south of Xi’an, gold cakes, silver ingots, and gilded vessels scattered across the ground. The most eye-catching items were a silver coin stamped with the portrait of Khosrow II, the king of Sassanid Persia, and a silver plate engraved with Sogdian script. After being buried for more than 1,200 years, these two objects from Central Asia once again pulled the trans-Eurasian trade route connecting Chang’an and Samarkand into the public eye.

这两件器物只是长安作为丝绸之路贸易枢纽的冰山一角。作为唐代的都城，长安不仅是帝国的政治中心，更是整个丝路贸易网络的起点与核心引擎：它的制度设计为跨境贸易提供了顶层保障，城市功能布局为国际商旅提供了落地空间，文化包容性则为商品、技术、宗教的流动提供了土壤。从张骞凿空西域的公元前139年，到玄奘西行取经的公元629年，长安始终是丝路两端——中原农耕文明与中亚游牧/绿洲文明——交汇的第一站，也是所有向撒马尔罕、更远的西方出发的商队的起点。

These two artifacts are only the tip of the iceberg of Chang’an’s role as a trade hub on the Silk Road. As the capital of the Tang Dynasty, Chang’an was not only the political center of the empire, but also the starting point and core engine of the entire Silk Road trade network: its institutional design provided top-level guarantees for cross-border trade, its urban functional layout provided landing space for international merchants, and its cultural inclusiveness provided a fertile ground for the flow of goods, technologies, and religions. From 139 BCE, when Zhang Qian opened up the Western Regions, to 629 CE, when Xuanzang traveled west to obtain Buddhist scriptures, Chang’an was always the first stop where the two ends of the Silk Road – the agrarian civilization of the Central Plains and the nomadic/oasis civilization of Central Asia – converged, and the starting point for all caravans heading to Samarkand and further west.

> 📌 侧边栏：何家村窖藏的考古价值 > 1970年出土的何家村唐代窖藏共出土文物1000余件，其中来自中亚、西亚的器物占比超过20%，包括12枚萨珊银币、8枚波斯银币、1件拜占庭金币、3件粟特文银盘，以及大量波斯风格的鎏金银器。这些器物的埋藏时间为唐代宗大历年间（766-779年），窖藏主人为邠王李守礼家族，说明当时长安的胡商已经把大量贸易商品储存在权贵家中，侧面印证了西市贸易的活跃度。 > > > 📌 Sidebar: Archaeological Value of the Hejiacun Hoard > > The Hejiacun Tang dynasty hoard unearthed in 1970 contained more than 1,000 artifacts, of which objects from Central and West Asia accounted for more than 20%. These included 12 Sassanid silver coins, 8 Persian silver coins, 1 Byzantine gold coin, 3 Sogdian silver plates, and a large number of gilded silverware in Persian style. These objects were buried during the Dali era of Emperor Daizong of Tang (766-779 CE), and the owner of the hoard was the family of Li Shouli, the Prince of Bin. This shows that foreign merchants in Chang’an at that time had stored a large number of trade goods in the homes of nobles, which indirectly confirms the prosperity of trade in the West Market.

一、制度基石：唐代关市体系与蕃坊管理

I. Institutional Cornerstone: The Guan Market System and Fan Fang Management in the Tang Dynasty

丝绸之路的贸易从来不是自发的民间行为，而是需要制度保障的系统性网络。唐代的长安之所以能成为丝路起点，核心在于其建立了一套从中央到地方的关市管理体系，既规范了跨境贸易的秩序，又为外国商人提供了制度化的生存空间，这套体系可以追溯到张骞“凿空”西域的历史原点。

Silk Road trade has never been spontaneous folk behavior, but a systematic network that requires institutional guarantees. The core reason why Chang’an of the Tang Dynasty could become the starting point of the Silk Road lies in the establishment of a Guan market management system from the central government to local areas, which not only regulated the order of cross-border trade, but also provided institutional living space for foreign merchants. This system can be traced back to the historical origin of Zhang Qian's "opening up" of the Western Regions.

（一）从“凿空”到制度化：关市体系的顶层设计

(I) From "Opening Up" to Institutionalization: Top-Level Design of the Guan Market System

建元二年（前139年），张骞率领100多人的使团从长安出发，目的是联络大月氏夹击匈奴，他的身份是汉朝的使节，而非商人，但这次出使无意中打通了中原与西域的通道，为后来的贸易往来奠定了基础¹。不过汉代的丝路贸易长期以官方朝贡贸易为主，民间贸易受到严格限制，直到唐代，才真正形成了制度化的跨境贸易体系。

In the second year of Jianyuan (139 BCE), Zhang Qian led a delegation of more than 100 people to set off from Chang’an, with the aim of contacting the Great Yuezhi to attack the Xiongnu from both sides. His identity was that of a Han dynasty envoy, not a merchant, but this mission inadvertently opened up the passage between the Central Plains and the Western Regions, laying the foundation for later trade exchanges¹. However, Silk Road trade in the Han Dynasty was dominated by official tributary trade for a long time, and folk trade was strictly restricted. It was not until the Tang Dynasty that a truly institutionalized cross-border trade system was formed.

唐代的关市体系以《唐六典》为核心依据，在中央由门下省的驾部郎中员外郎主管全国互市事务，在地方沿丝绸之路设置凉州、沙州、瓜州、伊州等互市监，专门负责管理边境贸易和外国商人入境事务²。不同于汉代的“关禁”政策，唐代的关市允许民间商人从事跨境贸易，只要在市署登记“市籍”、缴纳相应的“市税”和“关税”，就可以合法经营。对于来自西域的外国商人，唐代还专门设置了“市籍”的简化登记程序，只要持有本国使节的证明文件，就可以在长安、洛阳等大城市从事贸易活动。

The Guan market system of the Tang Dynasty took the *Tang Code of Six Ministries* as the core basis. At the central level, the director of the Ministry of Personnel under the Menxia Sheng was in charge of national mutual market affairs, and along the Silk Road, local mutual market supervisors were set up in Liangzhou, Shazhou, Guazhou, Yizhou and other places, specifically responsible for managing border trade and the entry of foreign merchants². Different from the "customs prohibition" policy of the Han Dynasty, the Guan market of the Tang Dynasty allowed folk merchants to engage in cross-border trade. As long as they registered their "market citizenship" at the market office and paid the corresponding "market tax" and "customs duty", they could operate legally. For foreign merchants from the Western Regions, the Tang Dynasty also set up a simplified registration procedure for "market citizenship". As long as they held the proof documents of their own country's envoys, they could engage in trade in big cities such as Chang’an and Luoyang.

这套制度的另一核心是“蕃坊”制度：长安西市专门划出一块区域供胡商聚居，称为“波斯邸”或“蕃坊”，由互市监直接管理，不需要经过长安市署的管辖。蕃坊内的胡商可以按照自己的习俗生活、交易，甚至设立本国的宗教场所，比如祆祠、摩尼寺、大秦寺（景教教堂），这种包容性的管理制度，在当时的世界上是极为罕见的。

Another core of this system is the "Fan Fang" (Foreign Merchant Enclave) system: a special area in the West Market of Chang’an was designated for the settlement of foreign merchants, called "Persian Inn" or "Fan Fang", which was directly managed by the mutual market supervisor and did not need to be under the jurisdiction of the Chang’an market office. Foreign merchants in the Fan Fang could live and trade according to their own customs, and even set up their own religious places, such as Zoroastrian temples, Manichaean temples, and Daqin Temple (Nestorian church). This inclusive management system was extremely rare in the world at that time.

> 📌 侧边栏：出土文书中的关市运作实录 > 1967年新疆阿斯塔那古墓出土的《唐西州某市申账历》记载：“波斯客某，于某年某月某日，进波斯锦十匹，税银三两，入市籍”，这是目前发现的唯一一份记载胡商登记市籍流程的唐代文书，直接印证了关市制度的实际运作。 > > > 📌 Sidebar: Records of Guan Market Operation in Unearthed Documents > > The *Account Book of a Certain Market in Xizhou, Tang Dynasty* unearthed from the Astana ancient tomb in Xinjiang in 1967 records: "A Persian merchant, on a certain day of a certain month of a certain year, brought in 10 pieces of Persian brocade, paid three taels of silver as tax, and registered for market citizenship." This is the only Tang document found so far that records the registration process of foreign merchants for market citizenship, directly confirming the actual operation of the Guan market system.

（二）制度红利：贸易网络的官方背书

(II) Institutional Dividends: Official Endorsement of the Trade Network

唐代关市制度的另一重要特点是官方与民间贸易的并行不悖：官方通过“朝贡贸易”与西域各国建立政治联系，同时允许民间商队自由通行，这种“官方搭台、民间唱戏”的模式，大大降低了贸易的成本和风险。比如唐太宗贞观四年（630年），唐朝击败东突厥之后，西域各国纷纷派遣使节到长安朝贡，这些使节本身就是贸易的代表，他们带来的贡品可以免税进入长安，同时也可以携带中原的丝绸、瓷器返回本国，这种“贡赐贸易”实际上是一种官方补贴的贸易模式。

Another important feature of the Guan market system in the Tang Dynasty is the parallel development of official and folk trade: the government established political ties with countries in the Western Regions through "tributary trade", while allowing folk cara