China, as a big maritime country, has a vast sea area. In recent years, the maritime situation has become more and more complicated, and the task of maritime inspection has become increasingly heavy.In order to improve the efficiency of maritime patrol inspection, this paper designs and implements a maritime patrol inspection system based on Android.This system adopts the model of C/S architecture, mainly composed of UAV data acquisition terminal, cloud platform, server and Android client, through the MySQL database of UAV aerial data for storage, has realized the data real-time access of maritime patrol drones, trajectory tracking, aerial video broadcast, real-time display, historical trajectory flight conditions and video playback, flight data statistics, etc.The test results show that the system is practical and reliable, which enables patrol inspectors to understand the situation at sea in real time, so as to timely respond to maritime anomalies and improve the real-time, efficient and comprehensive maritime supervision.