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The study of the non-autonomous discrete equations, such as their various types of solutions, is substantially more difficult than that of the autonomous ones because of the non-autonomous property.In this article, we discuss the bilinearizations of non-autonomous H-series and Q1 model, and construct linear difference equation sets satisfied by generic Casoratian column vectors.Then through solving the linear difference equations, we find the N-soliton solutions in Casoratian form.