The book is written primarily for the first year of pre-medical students. We provide a systematic but brief introduction to the knowledge of measurement data analysis,which includes uncertainty estimation, significant figures and scientific notation. The emphasis of this book is on the training of basic measurements,such as the measurements of length,speed,temperature and voltage,and experimental skills,such as correct recording of data,focusing of a telescope,operation of an oscilloscope,circuit connection,finding the relation between two sets of data,and so on Although most details necessary on the procedures of the experiments are given,this book can not be used as a substitute for carrying out actual experiments.Besides,it is encouraged that students conduct experiments by themselves and carry out data analysis independently,even if, in some cases, cooperation is required The best way to learn from experimental physics is to do it,instead of watching it as a stander-by.