我有加拿大十年往返签证去加拿大需要申请eTA吗？

不需要的。中国公民如持有加拿大十年往返签证，去加拿大是不需要申请eTA的。

加拿大eTA的对象：
加拿大电子旅行许可（eTA）只针对加拿大的免签国家/地区的公民，如欧洲各国的公民、持香港护照的香港公民、持台湾护照的台湾公民等。

需办理加拿大eTA的情况：
乘坐航空前往加拿大的免签证的外国公民、持香港护照的香港公民、持台湾新版护照的台湾公民、持有美国绿卡的人士需要办理。

办理加拿大eTA所需材料：
1、护照：有效期在回程日期算起九个月以上的护照，旧版须在护照末页签名，如有旧护照请一起提供。
2、申请表：请提供填写完整的ETA电子授权个人表格。

需要办理加拿大电子旅行许可（eTA）的国家（资料来自加拿大移民局）：
Countries and territories whosecitizens need a visa to travel to Canada
Note:Holders of Alien’s passport and Stateless individualsneed a visa to visit or transit in Canada.
Afghanistan
Albania
Algeria
Angola
Argentina
Armenia
Azerbaijan
Bahrain
Bangladesh
Belarus
Belize
Benin
Bhutan
Bolivia
Bosnia-Herzegovina
Botswana
Brazil
Bulgaria
Burkina Faso
Burma (Myanmar)
Burundi
Cambodia
Cameroon, Republic of
Cape Verde
Central African Republic
Chad
China, People's Republic of
Colombia
Comoros
Congo, Democratic Republic of
Congo, Republic of
Costa Rica, Republic of
Cuba
Djibouti
Dominica
Dominican Republic
East Timor
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Ethiopia
Fiji
Gabon
Gambia
Georgia
Ghana
Grenada
Guatemala
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
India
Indonesia
Iran
Iraq
Israel - holders of valid Israeli “Travel Document in lieu of National Passport”
Ivory Coast
Jamaica
Jordan
Kazakhstan
Kenya
Kiribati
Korea, North
Kosovo
Kuwait
Kyrgyzstan
Laos
Lebanon
Lesotho
Liberia
Libya
Macao Special Administrative Region
Macedonia
Madagascar
Malawi
Malaysia
Maldives Islands
Mali
Marshall Islands
Mauritania
Mauritius
Mexico
Micronesia, Fed. States
Moldova
Mongolia
Montenegro
Morocco
Mozambique
Namibia
Nauru
Nepal
Nicaragua
Niger
Nigeria
Oman
Pakistan
Palau
Palestinian Authority
Panama
Paraguay
Peru
Philippines
Qatar
Romania
Russia
Rwanda
Sao Tomé e Principe
Saudi Arabia, Kingdom of
Senegal
Serbia
Seychelles
Sierra Leone
Somalia
South Africa
South Sudan
Sri Lanka
St. Kitts and Nevis
St. Lucia
St. Vincent and the Grenadines (St. Vincent)
Sudan
Surinam
Swaziland
Syria
Taiwan – Note: Taiwanese citizens who hold a passport issued by the Ministry of Foreign Affairs in Taiwan that does not includetheir personal identification number need a visa to come to Canada. Taiwanese citizens who hold a passport issued by the Ministry of Foreign Affairs in Taiwan that includes their personal identification number need an eTA to come to Canada.
Tajikistan
Tanzania
Thailand
Togo
Tonga
Trinidad and Tobago
Tunisia
Turkey
Turkmenistan
Tuvalu
Uganda
Ukraine
United Arab Emirates
Uruguay
Uzbekistan
Vanuatu
Venezuela
Vietnam
Yemen
Zambia
Zimbabwe