Variety describes it as "a high grade horror film". Moria has a positive review and says, "The Hammer production crew are on top form with luxuriant photography, a rich and lavish score and exquisitely dressed sets. [Director] Terence Fisher is on excellent form too." 1000 Misspent Hours has a 4 out of 5 rating and has a glowing review. Empire Online concludes with this: "Expertly executed example of a golden time in British cinema - one to savour".
DVD Talk says
this thoughtful mix of mad surgery and tragic disfigurement is one of the best Frankenstein films ever, made when the studio was at the height of its creative powers. Peter Cushing alters his interpretation of the rash vivisectionist and Jimmy Sangster's intriguing script pulls in several fresh ideas.Rotten Tomatoes has a critics score of 92%.