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.

Data is the basis of thesis writing. After the topic selection, design, observation and experiment, collecting and processing data is the further preparation for writing a paper.

Thesis writing materials can be divided into primary materials and secondary materials. The former is also called original data or direct data, which refers to things that the author personally participates in investigation, research or observation, such as records made in experiments or observations, and belongs to this kind of data; The latter, also known as second-hand information or indirect information, refers to relevant professional or specialized documents, which are mainly accumulated through usual study. On the basis of obtaining enough information, it needs to be processed to make it systematic, organized and convenient for application. For thesis writing, these two materials are essential, so we should properly apply them to thesis writing, pay attention to the distinction between primary and secondary, especially the literature materials, and quote them appropriately on the basis of full digestion and absorption, and don't pretend to be the master. The use of first-hand information should also be true, accurate and correct.