Aiming at the requirements of typical multi-channel ignition signal detection and its signal characteristics, a general multi-channel ignition signal detection system based on SOPC architecture is designed. A general hardware acquisition scheme is constructed, and a highly reliable software acquisition and processing framework and method for multi-channel ignition signals are designed for the detection system, which can simultaneously collect and evaluate the current, pulse and time sequence of multi-channel ignition signals. For possible abnormal situations, the processing and judgment logic of reverse order benchmark is put forward. The application results show that the detection system has good universality and strong detection and evaluation ability, and has high engineering application value.