The invention discloses a bacterial cell sequence recognizer and a cell computer, belongs to the technical field of cell computers, and solves the technical problem that only one input sequence can beindicated in the prior art. The bacterial cell sequence recognizer is composed of a first cell and a second cell, the first cell is used for recognizing the sequence of the first signal and the second signal, and the second cell is used for recognizing the sequence of the third signal, the first signal and the second signal; The gene circuit of the first cell comprises a first circuit and a second circuit; The gene circuit of the second cell comprises a third circuit, a fourth circuit and a fifth circuit. According to the bacterial cell sequence recognizer, By destroying a circuit or an element, the signal input sequence is recorded without working in the future, indication of six different input sequences of three signals is realized through output combination of two cells, and the method can be applied to related applications such as a biocomputer, a biosensor and the like which need to judge the input sequence.