The binary logistic regression model revealed that a higher UPDRS III score (OR = 1.126, 95%CI = 1.061–1.194, p < 0.001) and a lower MoCA score (OR = 0.830, 95%CI = 0.713–0.967, p = 0.017) were both significantly associated with FOG in PD patients with GBA1 mutations. The gene discussed is GBA1; the disease is Parkinson disease.