The theoretical bases of oil and gas geochemical prospecting techniques are still very weak, and hence the prospecting techniques resting on these bases cannot be mature. If we want to study, develop and consummate the theory and methods of oil and gas geochemical prospecting techniques, our attitude towards the theory, the methods, the present situation, the existing problem and the new problems encountered in the development of oil and gas geochemical prospecting techniques must be practical, realistic and scientific. And we must have a clear and definite train of thought and scratch where it itches. Only in this way can our goal be attained.