Objective: In childhood cancers, parents are affected psychologically as well as children. We aimed to evaluate the effect of childhood cancer type and stage, as well as elapsed time from diagnosis, on the anxiety and stress indicators among parents. Materials and Methods: Patients aged between 0–18 years and diagnosed with cancer who were receiving chemotherapy (0–1 month, 1–6 month, 6–12 month) and completed treatment were included. Parents of those children (mother or father) who agreed to participate this study were also included. The personal information form and three psychological assessment scales (Beck Hopelessness Scale (PSS), Psychological Resilience Scale (PRS), Uncertainty Intolerance Scale (IUS)) were used for assessment of mental health of the parents. Scores of the scales and clinical features of the children with cancer were compared statistically. Results: The study included 84 parents (57 mothers, 27 fathers) and 84 children. The rate of children with solid tumors was 60% (n:50) and 40% of them were metastatic, which means advanced stage. The rate of the children with leukemia was 40% (n:34) and 23% of them were in high-risk group. According to the type (leukemia vs. solid tumors) and stage (high risk/advanced stage vs. others) of the cancer, there was no statistical difference among parents in the psychological scales (p > 0.05). Additionally, results of the psychological scales showed no significant difference between mothers and fathers (p > 0.05). The hopelessness scores are significantly higher among parents whose child’s treatment is terminated compared with those whose active therapy is ongoing, and resilience scores are higher among parents who have less than 1 month since diagnosis of childhood cancer than later periods. Conclusions: The regular assessment of mental health among parents of children with cancer across all the survivorship trajectory: at the time of diagnosis, during active therapy, and after treatment.