The invention provides a memory alloy compression fixing pin for fractures of tibial intercondylar eminences. The memory alloy compression fixing pin comprises a pin body made of memory alloy, the front end of the pin body is provided with a hook while the tail of the pin body is provided with a thread, and the tail end of the pin body is fittingly connected with a compression nut. A body of the compression nut is tubular and provided with an internal thread, and the tail end of the compression nut is expanded. The hook can be straightened after being soaked in ice water and automatically resets to the hook shape in normal temperature. The memory alloy compression fixing pin is applicable to all fractures of tibial intercondylar eminences and available for minimally invasive operation under monitoring of arthroscope regardless of sizes and comminuting degrees of fracture blocks, each fixing pin only requires one tibial bone tunnel, and convenience and quickness in operation are realized while operation time is shortened. In addition, due to rigid fixing, firmness in fracture fixation is realized, early function rehabilitation is allowed, small tibial bone tunnels and minimal damages are realized as well, and the memory alloy compression fixing pin is also suitable for fractures of tibial intercondylar eminences of adolescents without epiphyseal closure.