The invention provides a method and system for testing a Modem module on an embedded PCBA (Printed Circuit Board Assembly). The quick test method comprises the following steps: scanning a pluggable memory in a memory interface of the PCBA; loading a test code pre-stored in the pluggable memory and testing the Modem module; driving prompting equipment on the PCBA to send normal prompting information if the result of the test is normal, otherwise, driving the prompting equipment on the PCBA to send abnormal prompting information. By utilizing the embedded PCBA to load the test code of the pluggable memory to perform a test to the Modem module, the quality of an SMT (Surface-mount Technology) of the Modem module can be quickly tested, and the result of the test can be visually observed, as a result, test efficiency is greatly improved, and a hardware guarantee is provided for the following normal working of the whole machine.