It is an extremely important step to engage in basic or clinical nursing scientific research, write papers and make necessary animal experiments or clinical observations. It is not only a basic process to obtain objective results and draw correct conclusions, but also an important way to accumulate papers and writing materials. Experiment is a method to explore objective laws by various material means (experimental instruments, animals, etc.). ) according to the research purpose; Observation is a conscious investigation of natural phenomena to reveal the reasons behind the phenomena and their laws. Their main functions are to collect scientific facts, obtain perceptual materials for scientific research, and develop and test scientific theories. The difference between the two is that "observation is to collect what natural phenomena provide, while experiment is to extract what you want from natural phenomena." Therefore, whether it is animal experiments or clinical observation, we should be meticulous, based on various facts, and make various records in our work.

Some nursing papers do not necessarily need animal experiments or clinical observation, such as nursing management papers or nursing reviews, but necessary social practice activities are still indispensable. Only by raising the materials obtained from practice to theory can we get valuable results.