The year 2020 marks the 70th anniversary of the War to Resist U.S. Aggression and Aid Korea （1950-1953）. Our War，a series produced by Youku as a tribute to the anniversary，in October 2020 was broadcast simultaneously on Youku and CCTV-8，a drama channel of China Central Television. Having achieved remarkable success in both viewership and word of mouth，Our War stands out from film and television works of 2020，and becomes an important object of study. With the help of review data and interview with the producer，this article summarises reasons for the series’ success from the two dimensions of content production and marketing strategies，so as to provide a reference for other war TV shows in the future.