The invention relates to a movable real-time multipoint temperature acquisition device for a dam. The movable real-time multipoint temperature acquisition device for the dam comprises interpolating digital temperature measurement devices 1 arranged in a water inlet pipe and a water outlet pipe of each set of cooling water pipe, digital thermometers 2 embedded in respective points of a concrete block in pouring, a temperature acquisition device 3, and a server 4 used for receiving data collected by the temperature acquisition device 3, wherein the temperature acquisition device 3 comprises a data acquisition line 5, an acquisition control module 6, a power supply 7, a cache module 8, a wireless communication module 9 and a waterproof and moisture-proof case 10 and uploads temperature data to the server 4 wirelessly. According to the movable real-time multipoint temperature acquisition device for the dam, the temperature acquisition device 3 is used for collecting temperature data of concrete, inlet/outlet water and the digital thermometers 2 embedded in respective points of the concrete block, and one temperature acquisition device can access over 128 temperature spots, so that the temperature measurement requirement in the concrete cooling project is satisfied; and meantime the simpleness and the convenience are achieved in wiring, the convenience is brought for installation and the movement, and real-time, fast and accurate temperature measurement is achieved.