This paper recounts the principle, program flow diagram and applicationcases of automatic interpretation of the field data callected by shallow firstarrival refraction survey using t_o and differential time-distance curves with thehelp of a microcomputer. A simple and easy method for correction of seismicsource depths is adopted in program design to simplify the procedure of seismicsource depth correction. The automatic interpretation by means of the microcom-puter enables us not only to raise the work efficiency by hundreds of times,but also to eliminate the errors caused by such aspects in artificial interpreta-tion as spread of points, drawing, auxiliary line drawing and reading.