I want to integrate the hIve and smarthings

It cannot be done directly. Both the SmartThings hub and the Hive hub expect to own the zigbee network so you can only have one.

However, there is a community-built integration which provides cloud to cloud integration. There are step by step instructions for it in the following thread:

[RELEASE] - Hive (Connect) V3.0 (British Gas Hive)