The invention discloses a pile foundation quality detection device for municipal engineering. The quality detection device comprises a sensing monitoring module, a cloud server and a management and control center. The sensing monitoring module comprises an aggregation node and a plurality of sensor nodes deployed at all parts of a pile foundation to be detected, the sensor nodes monitor and senseall parts of the pile foundation to be detected, and the aggregation node aggregates pile foundation state data collected by all the sensor nodes and sends the pile foundation state data to the cloudserver; And the management and control center obtains the pile foundation state data from the cloud server, analyzes and processes the pile foundation state data, and gives an alarm when a processingresult shows that the pile foundation to be detected has quality defects. The wireless sensor network is adopted, pile foundation state data can be monitored in real time, the cost of pile foundationquality detection is reduced, omnibearing and multi-parameter monitoring of the pile foundation state is achieved, and the accuracy of pile foundation quality detection is greatly improved.