The invention discloses a quantitative simulation test system and method capable of realizing coal and gas outburst induction during cross-cut roadway tunneling. The system mainly consists of five major key unit modules including a model counterforce and space sealing unit, a high-flow-rate high-pressure gas filling loading unit, a high ground stress gradient loading intelligent control unit, a roadway miniature digging and high-speed recording unit and a multi-physical-field information obtaining unit. The test model loading counterforce support and gas sealing, true three-dimensional highland stress flexible gradient loading and precise control, high-flow-rate gas source continuous pressure maintaining filling, model roadway quantitative control tunneling and outburst process capturing,and high-frequency high-precision real-time collection of key physical parameters in the test process are realized at the same time. The system and the method realize the quantitative simulation testof the coal and gas outburst induction during cross-cut roadway tunneling.