Rice planting apparatus capable of dissipating heat timely

The invention relates to a rice planting apparatus capable of dissipating heat timely. The rice planting apparatus comprises a carrier body (92), a seedling planting execution mechanism (93) installed on the lower end of the carrier body (92) and a fixed connecting frame connected to a driving vehicle, wherein the fixed connecting frame comprises an upper and a lower connecting part (61) as well as a slide stroke part (81) fixedly arranged between the upper and the lower connecting part (61), the slide stroke part (81) is internally provided with an inner cavity (811) and a middle slit (810) communicated with the inner cavity (811), and a threaded slide block (85) with a screw hole formed in the middle part is arranged in the inner cavity (811) in a sliding manner.