A fixed support for an anti-toppling frost prevention machine includes a frost prevention machine, a connection support, an anti-toppling reinforcement seat, a base bolt, and a base seat. The connection support includes an anti-toppling guide cylinder, a fixed supporting column, and a connecting plate. The anti-toppling reinforcement seat is formed by fixing a reinforcement seat bracket and an anti-toppling supporting foot through a bolt. The base seat is formed by fixing a base plate through an upper connection ring, and a lower connection ring. The base bolt is used for fixing the connection support and the base seat.