The 22-year-old from Canberra delivered two solid jumps to finish in fourth and also claimed that spot overall in an encouraging second season.
Chinese athletes took all three podium positions, with Mengtao Xu wrapping up the series title with her ninth World Cup victory, current world champion Shuang Cheng second and Xin Zhang picked up the bronze medal.
Peel's season included a win in Austria and a third place in Canada in a competition which was admittedly weaker, still being two years out from the Winter Olympics.
While her range of jumps doesn't have the degree of difficulty to match the top Chinese athletes, Peel said she would increase the difficulty in 2013 in preparation for the Sochi Games.
Fellow Australian Danielle Scott was named the World Cup rookie of the year after Saturday's final despite a comparatively disappointing result.
Scott recorded seven top 10 results from 10 events, ending the day's competition in 11th place and also with an overall ranking of 11.