The experiment was conducted to evaluate the performance of “Standardization of blanching and sulphitation technique on physico-chemical parameters for dehydration of banana pseudostem central core for powder making using cabinet dryer” with 16 treatments were fixed including pre-treatment of blanching (B₁-0 min., B₂-2 min., B₃-4 min. and B₄-6 min.) and sulphitation (S₁-0.0% KMS, S₂-0.1% KMS, S₃-0.2% KMS and S₄-0.3% KMS). The prepared blended powder was stored at room temperature for up to 6 months (0, 3 and 6 months) in 100 g aluminum laminated pouches. The results were statistically analyzed using a completely randomized design with factorial concept. Results indicated that maximum potassium content (4964.25 mg/100g), (3690.77 mg/100g) found in B₁ and S₃, maximum iron content of (13.31 mg/g) and (11.13 mg/g) found in treatment B₁ and S₂ respectively. While highest TSS (2.83 ºB), (2.30 ºB), crude fiber (15.51%), (14.05%) and ash content (28.76%), (25.48%) observed in treatment B₁ and S₁ respectively. The highest SO₂ content (72.18 ppm), (40.58 ppm) were found in B₄ and S₄ respectively although, highest L* value of (79.42), (71.32) were found in treatment B₃ and S₄ respectively. Also, the interaction of blanching-sulphitation and storage maximum potassium content (5216.00 mg/100g), iron content (13.67 mg/g) were recorded in P₁B₁S₃ and highest TSS (2.90 ºB) in P₃B₁S₃ while crude fiber (15.76%) and ash content (29.30%) was observed in P₁B₁S₁ although highest SO2 content in P₁B₄S₄.