The present invention relates to a water flow measuring drifting buoy capable of preventing stranding and resisting impact, which includes: a ball-game table-shaped inflation body with a counterweight capable of drifting autonomously in a direction of a main stream of a water flow, wherein the inflation body is provided with at least two inflation connectors, and the inflation connectors are of a cross-shaped structure formed by connecting in a conical distribution with 4 inflation-stabilizing rods uniformly distributed along a circumferential radiation; the counterweight is 4-10 fan-shaped steel plates arranged annularly in the center of the bottom of the inflation body, and the fan-shaped steel plates are flexibly connected to each other to be able to shake. The ball-game table structure used in the present invention is selected by comparing various shapes to push a buoy to the middle of a river where the water flow is turbulent by using the difference in a water flow speed to prevent the water flow from being stranded where the water flow is slow or being blocked by a rock at a river bank so as not to continue the drift. The steel plate of the cross-shaped structure in the fan-shaped distribution is used, so that the buoy can be turned up and continue to drift once it has fallen to the ground, greatly improving the efficiency of drift.