A bachelor's degree is a junior degree, which is usually awarded to undergraduate graduates by institutions of higher learning. A master's degree is a second-class degree, usually obtained after obtaining a first-class bachelor's degree and studying 1~3 years. Doctor is a degree that marks a person's ability to produce original theoretical results or academic ability, and it is the highest degree at present.
Bachelor's degree is the name of the degree awarded at the undergraduate stage of higher education. It means that the degree holder has mastered the basic theory, professional knowledge and basic skills of the subject, and has the initial ability to engage in scientific research or undertake specialized technical work.
A master's degree is a postgraduate degree between a bachelor's degree and a doctorate. A master's degree usually symbolizes a basic independent thinking ability. A master's degree usually symbolizes mastery and specialization in an academic field or workplace. In major academic fields, qualified graduate students must be able to understand both academic theory and reality, analyze with theory, think critically, and apply knowledge professionally. And can solve complex problems better than undergraduate, and have more independent and meticulous thinking ability.
A doctor's degree is a title that marks that the educational level and academic level of the grantee have reached the prescribed standards. In the degree system of most countries in the world, the doctorate is the highest level. In daily life, only a doctor's degree will be specially called Dr. XXX with his surname.