Producers Releasing Corporation released the film in September 1946.
The New York Times wrote of the film, "In fashioning ''Her Sister's Secret'' as their first million-dollar production, the film makers at PRC may have been imbued with the theory that soap operas not only affect a lot of people but also sell soap and make money. For the romantic drama, which came to the Gotham yesterday, follows the pattern set by many of those lachrymose radio offerings" and said that "The sets of "Her Sister's Secret" are neat and interesting, attributes, which, sadly enough, can hardly be applied to its story." Richard Brody of
The New Yorker remarked that "the actors are hardly charismatic, but Ulmer, capturing their frozen energy in the shifting perspective of daringly long takes, infuses them with his rhapsodically compassionate vision." Brody also wrote that "Edgar G. Ulmer cuts loose with a wild creativity that yoked his theatrical imagination to a keen view of the traumatic times," and that Ulmer "wrings the last drop of true emotion from every soap-operatic twist, while also baring the domestic scars of war’s violence, sacrifice, and, above all, silence."
Leonard Maltin gave the film two and a half stars, saying that it was a "fair weeper with competent cast." In 1947, the film was banned in
Ireland by
Richard Hayes for featuring an
unwed mother, a decision which was eventually reversed by the Appeal Board. This reversal was described by Irish film historian
Kevin Rockett as "an indication of the slightly more flexible approached being adopted in the post-war years by the Appeal Board." ==Preservation==