You need an embassy visa for 沙特阿拉伯 if you have 坦桑尼亚护照

Travelers need a visa to visit Saudi Arabia for Business or Tourism. Travelers who are permanent residents or travelers with a valid business or tourism visa issued by United Kingdom, United States, or a Schengen member state are eligible for a visa on arrival. The visa must be valid and have been used at least once, and travelers must have an entry stamp from the issuing country. Travelers can get a visa on arrival in Saudi Arabia at the port of entry, such as an international airport or border crossing.

旅客需要签证才能前往沙特阿拉伯进行商务或旅游。0 朝觐和副朝部宣布，前往沙特阿拉伯进行副朝 旅客可于 2025 4 月 13 日前入境，并必须在 2025 年 4 月 29 日前出境。旅客可于 2025 年 6 月 10 日起再次入境沙特阿拉伯进行副朝。此政策仅适用于前往沙特阿拉伯进行副朝的旅客。1 前往沙特阿拉伯的旅客可获得纸质签证或使馆签证。签证通常是加盖在护照上的印章或贴纸。旅客必须在旅行前从当地大使馆、领事馆或签证中心获得此签证。