TYQZ201/TYQZ202 catalyst is a group of nickel as the active component, high temperature alumina and aluminum-calcium as the carrier of high temperature sintering type natural conversion catalyst, it is suitable for oil field gas or natural gas as raw material, steam conversion to produce industrial hydrogen, ammonia synthesis gas, methanol synthesis gas, directly metallurgical reduction gas of high temperature reformer. It is also suitable for the process of oxygen-rich partial oxidation and intermittent conversion to syngas. TYQZ201 is a heat-resistant catalyst, loaded in middle part of tube. TYQZ202 is a high activity conversion catalyst, loaded in rear of tube proportionally.