Mexico competed at the 2014 Summer Youth Olympics, in Nanjing, China from 16 August to 28 August 2014.
Mexico qualified two archers from its performance at the 2013 World Archery Youth Championships.
Mexico qualified 7 athletes to compete in the following events.
<small>Qualification Legend: Q=Final A (medal); qB=Final B (non-medal); qC=Final C (non-medal); qD=Final D (non-medal); qE=Final E (non-medal)</small>
Mexico qualified two athletes based on the 2 May 2014 BWF Junior World Rankings.
Mexico qualified one boxer based on its performance at the 2014 AIBA Youth World Championships
Mexico qualified one boat based on its performance at the 2013 World Junior Canoe Sprint and Slalom Championships.
Mexico qualified a boys' and girls' team based on its ranking issued by the UCI.
Mexico qualified four quotas, representing by two athletes, based on its performance at the Nanjing 2014 Diving Qualifying Event.
Mexico qualified one athlete at the 2014 Cadet World Championships.
Mexico qualified a boys' team based on its performance at the 2014 Youth American Championship.
Mexico qualified in the girls competition.
Mexico qualified one team of two athletes based on the 8 June 2014 IGF Combined World Amateur Golf Rankings.
Mexico qualified two athletes based on its performance at the 2014 Junior Pan American Artistic Gymnastics Championships.
Mexico qualified one athlete based on its performance at the 2014 Junior Pan American Rhythmic Championships.
Mexico qualified two athletes based on its performance at the 2014 Junior Pan American Trampoline Championships.
Mexico qualified one athlete based on its performance at the PANAM YOG Qualifiers and another based on its performance at the 2014 Youth A World Championships.
Mexico qualified two boats; one based on its performance at the Byte CII North American & Caribbean Continental Qualifier and the other based on its performance at the Techno 293 North American & Caribbean Continental Qualifier.
Mexico qualified three athletes at the 2014 American Qualification Tournament.
The three quotas places that Mexico obtained were thanks to José Santos Valdés who finished in the 2nd place at the Men's Air Rifle event, to Lia Borgo Torres who ended 1st at the Women Air Rifle event and Ana Paula Ruiz who won the Women 10m Air Pistol event. All of this events were held al the 2014 ISSF Cup Pistol/Rifle, Fort Benning.
Mexico qualified four swimmers.
Mexico qualified four athletes based on its performance at the Taekwondo Qualification Tournament.
Mexico qualified one athlete based on the 9 June 2014 ITF World Junior Rankings.
Mexico qualified two athletes based on its performance at the 2014 American Youth Olympic Games Qualifier.
Mexico qualified 2 quotas in the boys' events and 2 quotas in the girls' events based on the team ranking after the 2013 Weightlifting Youth World Championships.
Mexico qualified two athletes based on its performance at the 2014 Pan American Cadet Championships.