Salinity stress is a prominent abiotic limitation that reduces the yield and quality of oilseed crops globally. Phytohormones modulate plant salinity responses by coordinating complex physiological and molecular networks that improve stress tolerance. This chapter delves into the integrative function of important phytohormones-abscisic acid (ABA), salicylic acid (SA), jasmonic acid (JA), ethylene (ET), cytokinins (CK), gibberellins (GA), and auxins—in regulating ion homeostasis, osmotic balance, antioxidant defense, and gene expression of oilseed crops under saline circumstances. Recent research demonstrates how hormonal cross-talk fine-tunes adaptive responses, allowing oilseed crops to withstand salt-induced damage while maintaining development. Understanding these phytohormonal systems provides intriguing opportunities for generating salt-tolerant oilseed crops via breeding, genetic engineering, and exogenous hormone applications. This analysis emphasizes the need for coordinated solutions that use phytohormonal signaling to assure long-term oilseed production in the face of rising saline levels.