Soil quality information acquisition system and work machine provided with same

A soil quality information acquisition system for use in a working machine including:

• a machine body having a traveling part travelable on a ground;
• and a working attachment attached to the machine body movably relative to the machine body for performing a predetermined work to the ground, the soil quality information acquisition system being adapted for acquiring soil quality information being information about a soil quality on a worksite, the soil quality information acquisition system comprising:
• a position information acquisition part that acquires position information about the working machine on the worksite;
• an acquisition time determination part that determines an acquisition time on the basis of soil quality relevant information being information related to a change in the soil quality on the worksite, and outputs an acquisition signal concerning the acquisition time;
• a soil quality information acquisition part that receives the acquisition signal output from the acquisition time determination part, and acquires the soil quality information in response to the acquisition signal;
• and
• a storage part that stores the position information acquired by the position information acquisition part and the soil quality information acquired by the soil quality information acquisition part in association with each other.