The invention discloses a mobile data collection method of a high-availability wireless sensor network. The method comprises the following steps: mobile Sinks adjust movement tracks and movement speeds according to the energy consumption information of mobile nodes around the movement tracks; the mobile Sinks monitor health states of each other, when a mobile Sink is faulty, the healthy mobile Sinks broadcast and adjust the network topology, and after the faulty mobile Sink is restored, the network topology is restored; and a sensor node deployed in a network area calculates coordinate information of the mobile Sinks in the network and selects the healthy mobile Sink located on a lingering point and closest to the sensor node to route a data packet. According to the mobile data collection method disclosed by the invention, the mobile Sinks do not need to broadcast the current locations on the lingering point, thereby reducing the communication cost; and the movement tracks are properly adjusted to balance the energy consumption of the network; and after a part of the mobile Sinks is faulty, the network can still work normally, thereby prolonging the life of the network and having relatively strong practical significance.