Insertable vortex flowmeters are widely used in the measurement of steam, gas and liquid flow due to their advantages such as simple structure, easy installation and low cost. However, in practical applications, its measurement performance is limited by multiple factors. If the selection or use is improper, it may lead to data deviation or even equipment damage. This article will conduct an in-depth analysis of the main limitations of the insertable vortex flowmeter to help users make reasonable selections and optimize their usage.