The invention discloses a high precision portable coal mine gas outburst prediction instrument. The high precision portable coal mine gas outburst prediction instrument includes a main control module, a gas pressure sensor module, an AD data conversion module, an atmosphere/temperature sensor, a power supply module, a keyboard input module, an LCD display module, a FLASH storage module, an SRAM memory module and a USB data interface, and also includes a voice module, wherein the main control module is connected with the AD data conversion module, the atmosphere/temperature sensor, the power supply module, the keyboard input module, the LCD display module, the FLASH storage module, the SRAM memory module, the USB data interface and the voice module; and the AD data conversion module is also connected with a gas pressure sensor. The high precision portable coal mine gas outburst prediction instrument has the advantages of being high in data acquisition speed, being high in measurement precision, being high in stability and man-machine interactivity, being convenient and portable, being low in power consumption, and being simple in operation.