中国护照从土耳其上船免签，美国护照反而要签证。你去查一下上船国家的要求吧

People's Republic of China: Official passport holders are exempted from visa for their travels up to 30 days.

Ordinary passport holders are required to have visa. These passport holders can obtain their 30 days single entry e-Visas via the web site www.evisa.gov.tr.

United States of America: Official and ordinary passport holders are required to have visa to enter Türkiye. Ordinary passport holder USA citizens may obtain their visas through www.evisa.gov.tr website.