Molybdenum is a rare refractory metal with low thermal expansion coefficient, good thermal conductivity and high elastic modulus. However, the plasticity and processing properties of molybdenum limit its application in high-tech fields. This paper studies the conventional sintering process based on nano-molybdenum powder, and analyzes the influence of powder particle size, sintering temperature and soaking time on the density, microstructure, mechanical and physical properties of molybdenum products. The experimental results show that compared with micron powder, nano-molybdenum powder has a lower densification temperature. It is recommended that 1550°C is the most suitable temperature to obtain the best mechanical and physical properties.